OEIS link for a description of lunar arithmetic
Simply take the larger digit.
Back and Forth Rows
Number of Horns on a unicorn!
Add two numbers
Sum the Digits of a Number
matrix of natural number
Write c^3 as sum of two squares a^2+b^2
longest sequence of nans
Find two triangular numbers whose sum is input.
Van Eck's Sequence's nth member
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