OK, but you can you *derive* that formula?
Does “look up in OEIS” count as “derive”?
Tim: You, William, David, and others have figured me out. I suppose there are worse habits than repeatedly clicking the "Webcam" button on OEIS.
Roll the Dice!
Ripping numbers apart!
Van Eck's Sequence's nth member
Recaman Sequence - II
Compute the arithmetic derivative of integers
Round up to π
Characterize the final state of another digit inventory sequence
Compute a sum involving the totient over divisors of a number
Determine whether a square can be drawn on a grid of dots
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