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A195651
Number of ways to place 12n nonattacking kings on a 24 x 2n chessboard.
4
53248, 61892669, 16333065216, 1955475353217, 143422674213726, 7545414941610145, 312546900470579954, 10819171744710664383, 325878859655043000344, 8788579757709800395287, 216711725342137199240416, 4963704194366362387891227, 106899958975789427315593702
OFFSET
1,1
FORMULA
Recurrence order is 5672.
CROSSREFS
Column k=12 of A350819.
Sequence in context: A015315 A061330 A195656 * A294752 A164519 A237180
KEYWORD
nonn
AUTHOR
Vaclav Kotesovec, Sep 22 2011
STATUS
approved