This should not work in general. It returns false-positive for consecutive 1 5 7 :-)
This should not work, but test suite only requires us to check for groups of three in columns.
Thanks for noticing that...I'll edit the test suite and fix that.
Specific Element Count
Back to basics 19 - character types
Sum of diagonal of a square matrix
kmph to mps
multiply by three
Golomb's self-describing sequence (based on Euler 341)
Lowest sum from a group of digits
Circular Primes (based on Project Euler, problem 35)
Miles to go before I sleep
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