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A241800
Number of ballot sequences of length n having exactly seven descents.
2
32, 1310, 26159, 349021, 3537427, 29216728, 205795528, 1274811402, 7106683612, 36230838069, 171229815244, 757346853197, 3162754360421, 12546713825786, 47572219652564, 173111049909503, 607264725020735, 2059610656640095, 6776341942347065, 21674530092011291
OFFSET
12,1
CROSSREFS
Column k=7 of A238121 and of A238122.
Sequence in context: A275141 A275036 A274732 * A231040 A254152 A160447
KEYWORD
nonn
AUTHOR
Joerg Arndt and Alois P. Heinz, Apr 28 2014
STATUS
approved