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Comment by farhanhubble | Hacker News Reader

Amazing article! There's a bug in it though. The LHS of the sum of cubes formula ends in n^2 instead of n^3.

There is an error in the squares formula as well. The correct formula is:

    (n*(n+1)*(2*n+1))/6.

Thanks a lot for pointing these out! I've corrected them.