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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

REFERENCES

S. Gao, H. Niederhausen, Sequences Arising From Prudent Self-Avoiding Walks (submitted to INTEGERS: The Electronic Journal of Combinatorial Number Theory).

LINKS

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

CROSSREFS

Sequence in context: A002525 A159328 A190587 * A052912 A024740 A025275

Adjacent sequences:  A190791 A190792 A190793 * A190795 A190796 A190797

KEYWORD

nonn,walk

AUTHOR

Shanzhen Gao, May 20 2011

STATUS

approved

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Last modified August 10 03:47 EDT 2020. Contains 336368 sequences. (Running on oeis4.)