OEIS link for a description of lunar arithmetic
Simply take the larger digit when adding and take the smaller digit when multiplying.
Return the 3n+1 sequence for n
Join Strings with Multiple Different Delimiters
GJam 2014 China Rd B: Sudoku Checker
String permutations on phone keyboard
Net Present Value of a Stream of Cash Flows
Challenging perms function!
Homemade: Control Charts
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