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.
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Maximum value in a matrix
Fibonacci-Sum of Squares
Better Index Number
A matrix of extroverts
List ways to reach a target sum
Compute the arithmetic derivative of integers
List the cuban primes
Solve an ODE: second-order linear equation with constant coefficients
List the Moran numbers
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