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A264453
Number of permutations of [n] with exactly four (possibly overlapping) occurrences of the generalized pattern 12-3.
2
2, 41, 492, 4851, 44291, 394154, 3502159, 31450283, 287335089, 2680535274, 25586566853, 250169461829, 2506738712869, 25745302689807, 270994937686871, 2922760610595872, 32288420619988347, 365214362676429903, 4227719744153328064, 50063651356822568135
OFFSET
5,1
LINKS
CROSSREFS
Column k=4 of A260665.
Sequence in context: A109125 A037061 A065587 * A112767 A350917 A058246
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Nov 14 2015
STATUS
approved