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Search: id:A005633
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| A005633 |
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Bishops on an n X n board (see Robinson paper for details).
(Formerly M0376)
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+0
2
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| 0, 1, 0, 2, 2, 8, 14, 36, 112, 216, 928, 1440, 8616, 11520, 87864, 100800, 997952, 1008000, 12427904, 10886400, 169435936, 130636800, 2501216992, 1676505600, 39837528576, 23471078400, 679494214656, 348713164800, 12370158205568, 5579410636800, 239109033342848
(list; graph; listen)
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OFFSET
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1,4
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REFERENCES
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N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
R. W. Robinson, Counting arrangements of bishops, pp. 198-214 of Combinatorial Mathematics IV (Adelaide 1975), Lect. Notes Math., 560 (1976). [The sequence mu(n).]
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MAPLE
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For Maple program see A005635.
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CROSSREFS
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Sequence in context: A002785 A045686 A045677 this_sequence A026585 A098273 A052970
Adjacent sequences: A005630 A005631 A005632 this_sequence A005634 A005635 A005636
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
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More terms from N. J. A. Sloane (njas(AT)research.att.com), Sep 28 2006
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