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A243418 Number of Dyck paths of semilength n having exactly 6 (possibly overlapping) occurrences of the consecutive steps UDUUDU (with U=(1,1), D=(1,-1)). 2
1, 15, 144, 1115, 7509, 45864, 261185, 1412742, 7350116, 37106514, 182907585, 884290974, 4207172844, 19747711113, 91627676418, 420914259695, 1916722429108, 8660949017183, 38866735108620, 173341678278027, 768774806179919, 3392247359157876, 14899045118613987 (list; graph; refs; listen; history; text; internal format)
OFFSET

14,2

LINKS

Alois P. Heinz, Table of n, a(n) for n = 14..550

CROSSREFS

Column k=6 of A243366.

Sequence in context: A133126 A240158 A255944 * A270511 A026893 A163799

Adjacent sequences: A243415 A243416 A243417 * A243419 A243420 A243421

KEYWORD

nonn

AUTHOR

Alois P. Heinz, Jun 04 2014

STATUS

approved

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Last modified February 1 20:24 EST 2023. Contains 359995 sequences. (Running on oeis4.)