[seqfan] Re: Counting polyominoes with a given "sprawl"

Sean A. Irvine sairvin at gmail.com
Sun Oct 18 21:15:46 CEST 2020

Four new sequences capturing the perimeter polynomials and sprawl have been

https://oeis.org/A338210 (fixed perimeter)
https://oeis.org/A338211 (free perimeter)
https://oeis.org/A338212 (fixed sprawl)
https://oeis.org/A338213 (free sprawl)

b-files for the first two, still to come.


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