Cody

Problem 45254. Tribonacci Sequence

Solution 2090487

Submitted on 13 Jan 2020 by Martin C.
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Test Suite

Test Status Code Input and Output
1   Pass
n = 5; y_correct = [0,0,1,1,2]; assert(isequal(tribonacci(n),y_correct))

v = 0 0 1 v = 0 0 1 1 v = 0 0 1 1 2 t = 0 0 1 1 2

2   Pass
n = 11; y_correct = [0 0 1 1 2 4 7 13 24 44 81 ]; assert(isequal(tribonacci(n),y_correct))

v = 0 0 1 v = 0 0 1 1 v = 0 0 1 1 2 v = 0 0 1 1 2 4 v = 0 0 1 1 2 4 7 v = 0 0 1 1 2 4 7 13 v = 0 0 1 1 2 4 7 13 24 v = 0 0 1 1 2 4 7 13 24 44 v = 0 0 1 1 2 4 7 13 24 44 81 t = 0 0 1 1 2 4 7 13 24 44 81

3   Pass
n = 21; y_correct = [0 0 1 1 2 4 7 13 24 44 81 149 274 504 927 1705 3136 5768 10609 19513 35890]; assert(isequal(tribonacci(n),y_correct))

v = 0 0 1 v = 0 0 1 1 v = 0 0 1 1 2 v = 0 0 1 1 2 4 v = 0 0 1 1 2 4 7 v = 0 0 1 1 2 4 7 13 v = 0 0 1 1 2 4 7 13 24 v = 0 0 1 1 2 4 7 13 24 44 v = 0 0 1 1 2 4 7 13 24 44 81 v = 0 0 1 1 2 4 7 13 24 44 81 149 v = 0 0 1 1 2 4 7 13 24 44 81 149 274 v = 0 0 1 1 2 4 7 13 24 44 81 149 274 504 v = 0 0 1 1 2 4 7 13 24 44 81 149 274 504 927 v = Columns 1 through 15 0 0 1 1 2 4 7 13 24 44 81 149 274 504 927 Column 16 1705 v = Columns 1 through 15 0 0 1 1 2 4 7 13 24 44 81 149 274 504 927 Columns 16 through 17 1705 3136 v = Columns 1 through 15 0 0 1 1 2 4 7 13 24 44 81 149 274 504 927 Columns 16 through 18 1705 3136 5768 v = Columns 1 through 15 0 0 1 1 2 4 7 13 24 44 81 149 274 504 927 Columns 16 through 19 1705 3136 5768 10609 v = Columns 1 through 15 0 0 1 1 2 4 7 13 24 44 81 149 274 504 927 Columns 16 through 20 1705 3136 5768 10609 19513 v = Columns 1 through 15 0 0 1 1 2 4 7 13 24 44 81 149 274 504 927 Columns 16 through 21 1705 3136 5768 10609 19513 35890 t = Columns 1 through 15 0 0 1 1 2 4 7 13 24 44 81 149 274 504 927 Columns 16 through 21 1705 3136 5768 10609 19513 35890

4   Pass
n = 30; y_correct =[ 0 0 1 1 2 4 7 13 24 44 81 149 274 504 927 1705 3136 5768 10609 19513 35890 66012 121415 223317 410744 755476 1389537 2555757 4700770 8646064]; assert(isequal(tribonacci(n),y_correct))

v = 0 0 1 v = 0 0 1 1 v = 0 0 1 1 2 v = 0 0 1 1 2 4 v = 0 0 1 1 2 4 7 v = 0 0 1 1 2 4 7 13 v = 0 0 1 1 2 4 7 13 24 v = 0 0 1 1 2 4 7 13 24 44 v = 0 0 1 1 2 4 7 13 24 44 81 v = 0 0 1 1 2 4 7 13 24 44 81 149 v = 0 0 1 1 2 4 7 13 24 44 81 149 274 v = 0 0 1 1 2 4 7 13 24 44 81 149 274 504 v = 0 0 1 1 2 4 7 13 24 44 81 149 274 504 927 v = Columns 1 through 15 0 0 1 1 2 4 7 13 24 44 81 149 274 504 927 Column 16 1705 v = Columns 1 through 15 0 0 1 1 2 4 7 13 24 44 81 149 274 504 927 Columns 16 through 17 1705 3136 v = Columns 1 through 15 0 0 1 1 2 4 7 13 24 44 81 149 274 504 927 Columns 16 through 18 1705 3136 5768 v = Columns 1 through 15 0 0 1 1 2 4 7 13 24 44 81 149 274 504 927 Columns 16 through 19 1705 3136 5768 10609 v = Columns 1 through 15 0 0 1 1 2 4 7 13 24 44 81 149 274 504 927 Columns 16 through 20 1705 3136 5768 10609 19513 v = Columns 1 through 15 0 0 1 1 2 4 7 13 24 44 81 149 274 504 927 Columns 16 through 21 1705 3136 5768 10609 19513 35890 v = Columns 1 through 15 0 0 1 1 2 4 7 13 24 44 81 149 274 504 927 Columns 16 through 22 1705 3136 5768 10609 19513 35890 66012 v = Columns 1 through 15 0 0 1 1 2 4 7 13 24 44 81 149 274 504 927 Columns 16 through 23 1705 3136 5768 10609 19513 35890 66012 121415 v = Columns 1 through 15 0 0 1 1 2 4 7 13 24 44 81 149 274 504 927 Columns 16 through 24 1705 3136 5768 10609 19513 35890 66012 121415 223317 v = Columns 1 through 15 0 0 1 1 2 4 7 13 24 44 81 149 274 504 927 Columns 16 through 25 1705 3136 5768 10609 19513 35890 66012 121415 223317 410744 v = Columns 1 through 15 0 0 1 1 2 4 7 13 24 44 81 149 274 504 927 Columns 16 through 26 1705 3136 5768 10609 19513 35890 66012 121415 223317 410744 755476 v = Columns 1 through 15 0 0 1 1 2 4 7 13 24 44 81 149 274 504 927 Columns 16 through 27 1705 3136 5768 10609 19513 35890 66012 121415 223317 410744 755476 1389537 v = Columns 1 through 15 0 0 1 1 2 4 7 13 24 44 81 149 274 504 927 Columns 16 through 28 1705 3136 5768 10609 19513 35890 66012 121415 223317 410744 755476 1389537 2555757 v = Columns 1 through 15 0 0 1 1 2 4 7 13 24 44 81 149 274 504 927 Columns 16 through 29 1705 3136 5768 10609 19513 35890 66012 121415 223317 410744 755476 1389537 2555757 4700770 v = Columns 1 through 15 0 0 1 1 2 4 7 13 24 44 81 149 274 504 927 Columns 16 through 30 1705 3136 5768 10609 19513 35890 66012 121415 223317 410744 755476 1389537 2555757 4700770 8646064 t = Columns 1 through 15 0 0 1 1 2 4 7 13 24 44 81 149 274 504 927 Columns 16 through 30 1705 3136 5768 10609 19513 35890 66012 121415 223317 410744 755476 1389537 2555757 4700770 8646064