I'm setting a target for Tim and others.
Construct a string from letters and counts
Convert Roman to Arabic Numerals
Return unique values without sorting
Square Digits Number Chain Terminal Value (Inspired by Project Euler Problem 92)
CONVERT TAN TO SIN
List composite numbers that cannot be written as the sum of two primes
Solve an ODE: separable equation
Count trailing zeros in a primorial
Count the primes in Collatz sequences
Guess the card in Fitch Cheney’s five-card trick
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