Find the longest sequence of 1's in a binary sequence.
Find matching parenthesis
Sum of first n terms of a harmonic progression
Say something funny
Lights Out 11 - 5x5, with wrapping, x moves
Divisible by 15
Combined Ages 1 - Symmetric, n = 3
Rule of mixtures (composites) - weighted bound
Mersenne Primes vs. All Primes
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