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A094172 Number of quasi-pentominoes in an n X n bounding box. 5

%I #6 Mar 31 2012 10:32:25

%S 0,0,0,21,390,3427,18380,73413,237459,659774,1629116,3666785,7651680

%N Number of quasi-pentominoes in an n X n bounding box.

%H Erich Friedman, <a href="/A094172/a094172.gif">Illustration of initial terms</a>

%e See A094170 for example of similar sequence.

%Y Cf. A094170, A094171.

%K nonn

%O 0,4

%A _Jon Wild_, May 07 2004

%E Corrected and extended by _Jon Wild_, May 11 2004

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Last modified May 26 03:59 EDT 2024. Contains 372807 sequences. (Running on oeis4.)