[seqfan] Re: Largest semigroup generated by boolean matrix multiplication

aleksisto aleksisto at gmail.com
Sun Nov 27 17:37:31 CET 2016


https://oeis.org/A217990


>I came across a integer sequence in an old entry of Jeffrey Shallit's blog:
> http://recursed.blogspot.ca/2012/10/an-interesting-but-
> little-known-function.html
>
> As far as I can tell it is not in the OEIS, though there are two unrelated
> sequences matching the first few terms of n^2 - n + 2.



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