login
A288543
Number of Dyck paths of semilength n such that the minimal number of peaks over all positive levels equals four.
2
1, 0, 0, 0, 0, 5, 56, 240, 620, 1220, 2201, 4501, 14231, 67597, 332768, 1455695, 5611277, 19525749, 63217514, 197236391, 617466587, 2015606482, 7005348816, 25768091554, 97973413377, 375778678054, 1431049415936, 5374397862025, 19899453137028, 72900123590938
OFFSET
4,6
LINKS
CROSSREFS
Column k=4 of A288387.
Cf. A000108.
Sequence in context: A072318 A174514 A041995 * A062125 A030060 A247710
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Jun 11 2017
STATUS
approved