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A238920 Number of self-inverse permutations p on [n] where the maximal displacement of an element equals 9. 2
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 764, 5008, 23980, 98846, 375950, 1353992, 4719178, 16089515, 54175927, 182019983, 614507621, 2078949960, 7035318948, 23778288812, 80187314884, 269618757792, 903570999504, 3017802963584, 10047020559840, 33357290774560 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,11

LINKS

Joerg Arndt and Alois P. Heinz, Table of n, a(n) for n = 0..750

CROSSREFS

Column k=9 of A238889.

Sequence in context: A049534 A245007 A204356 * A054468 A156395 A188402

Adjacent sequences:  A238917 A238918 A238919 * A238921 A238922 A238923

KEYWORD

nonn

AUTHOR

Joerg Arndt and Alois P. Heinz, Mar 07 2014

STATUS

approved

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Last modified August 5 22:41 EDT 2021. Contains 346488 sequences. (Running on oeis4.)