cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A366001 Number of free polyominoids with n cells, allowing right-angled corner-connections and flat edge-connections.

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%I A366001 #11 Nov 04 2023 18:24:58
%S A366001 1,2,18,243,4881,111697
%N A366001 Number of free polyominoids with n cells, allowing right-angled corner-connections and flat edge-connections.
%H A366001 Pontus von Brömssen, <a href="/A366001/a366001.svg">Illustration for sizes 1..3</a>.
%H A366001 Wikipedia, <a href="https://en.wikipedia.org/wiki/Polyominoid">Polyominoid</a>.
%H A366001 <a href="/index/Pol#polyominoes">Index entries for sequences related to polyominoes</a>.
%Y A366001 See A365995 for further details and a table of related sequences.
%Y A366001 Cf. A366002 (fixed).
%Y A366001 24th row of A366766.
%K A366001 nonn,hard,more
%O A366001 1,2
%A A366001 _Pontus von Brömssen_, Sep 26 2023

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