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A089455 Number of n-celled polyominoes with exactly 3 holes. 4

%I #4 Apr 07 2015 10:48:39

%S 0,0,0,0,0,0,0,0,0,0,0,0,0,3,69,798,7021,51775,339958,2053872,

%T 11665593,63192945,329798278,1670466031,8256762365,39992202198

%N Number of n-celled polyominoes with exactly 3 holes.

%H Tomás Oliveira e Silva, <a href="http://www.ieeta.pt/%7Etos/animals/a44.html">Animal enumerations on the {4,4} Euclidean tiling</a>

%Y Cf. A001419, A057418, A089454, A089456, A089457, A089458.

%K hard,nonn

%O 1,14

%A _Joseph Myers_, Nov 04 2003

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Last modified March 29 07:27 EDT 2024. Contains 371265 sequences. (Running on oeis4.)