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A288390 Number of Dyck paths of semilength n such that the number of peaks in each positive level is a term of this sequence. 2
1, 1, 1, 2, 5, 11, 28, 79, 215, 629, 1809, 5426, 16470, 50317, 155322, 483924, 1521732, 4822068, 15360504, 49144119, 158049374, 510824766, 1657541406, 5396486955, 17626155846, 57754129486, 189807753894, 625506513608, 2066420369017, 6842171033524 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,4
LINKS
EXAMPLE
a(4) = 5:
.
. /\ /\ /\ /\/\ /\/\
. /\/\/ \ /\/ \/\ / \/\/\ /\/ \ / \/\ .
CROSSREFS
Sequence in context: A202476 A210517 A244531 * A127331 A040998 A215939
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Jun 08 2017
STATUS
approved

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)