OEIS link for a description of lunar arithmetic
Simply take the larger digit when adding and take the smaller digit when multiplying.
Reverse Run-Length Encoder
Project Euler: Problem 2, Sum of even Fibonacci
convert matrix to single column
Side of a rhombus
interesting center of magic matrix
Challenging perms function!
Repeat string n times
'5*3' copy character 3 - five times
Recaman Sequence - III
Go back n times
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