Please try to solve a harder version "Problem 44448. Project Euler: Problem 14 Longest Collatz sequence"
The Goldbach Conjecture
CONVERT TAN TO SIN
Numbers spiral diagonals (Part 1)
MATLAB Basic: rounding III
Pandigital number n°2 (Inspired by Project Euler 32)
Replicate elements in vectors
Magic is simple (for beginners)
Two functions (to be sure)
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