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Search: id:A059680
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| A059680 |
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Triangle T(n,k) read by rows giving number of fixed 4 X k polyominoes with n cells (n >= 4, 1<=k<=n-3). |
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1
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| 1, 0, 12, 0, 18, 50, 0, 8, 154, 120, 0, 1, 212, 584, 230, 0, 0, 158, 1396, 1526, 388, 0, 0, 62, 2038, 5154, 3276, 602
(list; table; graph; listen)
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OFFSET
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4,3
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REFERENCES
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R. C. Read, Contributions to the cell growth problem, Canad. J. Math., 14 (1962), 1-20.
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EXAMPLE
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1; 0,12; 0,18,50; 0,8,154,120; ...
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CROSSREFS
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Adjacent sequences: A059677 A059678 A059679 this_sequence A059681 A059682 A059683
Sequence in context: A023917 A064141 A048730 this_sequence A077351 A119530 A012332
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KEYWORD
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nonn,easy,nice,tabl
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AUTHOR
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njas, Feb 05 2001
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