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A279294
Number of permutations of [n] having exactly five (possibly overlapping) doubledescents.
2
1, 14, 597, 11486, 265354, 5307274, 110325975, 2250025170, 46909998946, 990648740298, 21419845540563, 473829924582378, 10757656204264520, 250739074393237162, 6005432933786523655, 147819656394632180730, 3739797338380838531829, 97237232835306526768108
OFFSET
7,2
LINKS
CROSSREFS
Column k=5 of A162975.
Sequence in context: A041845 A205327 A291121 * A282053 A209678 A280676
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Dec 09 2016
STATUS
approved