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A195655
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Number of ways to place 11n nonattacking kings on a 22 X 2n cylindrical chessboard
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4
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24576, 106500, 565512, 3392964, 22327496, 158877948, 1212120160, 9849731140, 84719304384, 766319864440, 7241521734020, 71028444904044, 718816489322444, 7466044767879028, 79230397598482712, 855840660674700612, 9381236750764316676, 104090420921618696952
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OFFSET
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1,1
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COMMENTS
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This cylinder is horizontal: a chessboard where it is supposed that the rows 1 and 2n are in contact (number of columns = 22, number of rows = 2n)
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LINKS
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Alex V. Breger, Table of n, a(n) for n = 1..500
Artem M. Karavaev, Zealint blog (in Russian)
V. Kotesovec, Non-attacking chess pieces
Max A. Alekseyev, Denominator of the generating function
Vaclav Kotesovec, Generating function
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FORMULA
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Recurrence order is 1829
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CROSSREFS
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Cf. A137432, A195653, A195654, A195650, A195660
Sequence in context: A083621 A083622 A224423 * A203983 A188791 A195650
Adjacent sequences: A195652 A195653 A195654 * A195656 A195657 A195658
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KEYWORD
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nonn
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AUTHOR
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Vaclav Kotesovec, Sep 22 2011
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STATUS
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approved
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