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A195649 Number of ways to place 10n nonattacking kings on a 20 x 2n chessboard 5
11264, 5266069, 714611200, 50123713793, 2335042206624, 82425144219429, 2383116363555182, 59315924213143597, 1314578079936797520, 26568150968269086211, 498306336520679626558, 8788579757709800395287, 147246060712874767006100, 2362334876238883501403023 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Alex V. Breger, Table of n, a(n) for n = 1..500

V. Kotesovec, Non-attacking chess pieces

Vaclav Kotesovec, Generating function

FORMULA

Recurrence order is 1318

CROSSREFS

Cf. A174558, A195648, A018807, A195654, A195659

Sequence in context: A051346 A217125 A195654 * A110375 A252859 A177216

Adjacent sequences:  A195646 A195647 A195648 * A195650 A195651 A195652

KEYWORD

nonn

AUTHOR

Vaclav Kotesovec, Sep 22 2011

STATUS

approved

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Last modified May 6 09:45 EDT 2021. Contains 343580 sequences. (Running on oeis4.)