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Search: id:A059684
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| A059684 |
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Triangle T(n,k) giving number of 4 X k polyominoes with n cells (n >= 4, 1<=k<=n-3). |
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1
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| 1, 0, 3, 0, 6, 15, 0, 2, 39, 30, 0, 1, 59, 148, 61, 0, 0, 42, 349, 383, 97, 0, 0, 21, 518, 1304, 822, 155
(list; 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; 0,3; 0,6,15; 0,2,39,30; ...
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CROSSREFS
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Sequence in context: A077911 A057381 A019145 this_sequence A083350 A002043 A137436
Adjacent sequences: A059681 A059682 A059683 this_sequence A059685 A059686 A059687
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KEYWORD
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nonn,easy,nice
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AUTHOR
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njas, Feb 05 2001
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