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A190794 Number of two-sided n-step prudent walks ending at the northeast corner of their boxes, avoiding two consecutive west steps and south steps. 0
1, 2, 4, 10, 24, 56, 130, 306, 726, 1726, 4106, 9784, 9784, 23356, 55826, 133550, 319716, 765906, 1835856 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..19.

S. Gao and H. Niederhausen, Sequences Arising From Prudent Self-Avoiding Walks, 2010.

CROSSREFS

Sequence in context: A002525 A159328 A190587 * A052912 A024740 A025275

Adjacent sequences:  A190791 A190792 A190793 * A190795 A190796 A190797

KEYWORD

nonn,walk,more

AUTHOR

Shanzhen Gao, May 20 2011

STATUS

approved

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Last modified December 6 01:25 EST 2021. Contains 349558 sequences. (Running on oeis4.)