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A005632
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Bishops on a 2n+1 X 2n+1 board (see Robinson paper for details).
(Formerly M3923)
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1
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0, 0, 5, 22, 258, 1628, 18052, 145976, 1837272, 18407664, 265312848, 3184567136, 52020223648, 728304073664, 13317701313600, 213083801827200, 4314950946864000, 77669134543011584, 1725980887361498368, 34519618313219995136, 835374767116711506432, 18378244896208168541184
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,3
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REFERENCES
| R. W. Robinson, Counting arrangements of bishops, pp. 198-214 of Combinatorial Mathematics IV (Adelaide 1975), Lect. Notes Math., 560 (1976). [The sequence mu(2k+1).]
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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MAPLE
| For Maple program see A005635.
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CROSSREFS
| Sequence in context: A115657 A066865 A183902 * A183408 A002069 A120488
Adjacent sequences: A005629 A005630 A005631 * A005633 A005634 A005635
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
| More terms from N. J. A. Sloane (njas(AT)research.att.com), Sep 28 2006
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