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A279299
Number of permutations of [n] having exactly ten (possibly overlapping) doubledescents.
2
1, 24, 16654, 607995, 52687209, 2225347678, 112136485958, 4652156989635, 196794669764694, 7848158942463262, 311532163358831142, 12142236428089109402, 472096448836605015907, 18301483090810860748890, 711486425957970444213722, 27780774432495984165279729
OFFSET
12,2
LINKS
CROSSREFS
Column k=10 of A162975.
Sequence in context: A028694 A091777 A362712 * A145496 A279655 A067746
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Dec 09 2016
STATUS
approved