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A121786 "Cow patches" on the square lattice (see Jensen web site for further information). 1
1, 7, 160, 11408, 2522191, 1718769373, 3598611604598, 23098353998190640, 453839082673896579243, 27266319759961440667165921, 5005013940387988257218110301496, 2805250606288167736619664411164848668 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

I. Jensen, Table of n, a(n) for n = 1..19 [from the Jensen link below]

M. Bousquet-Mélou, A. J. Guttmann, Iwan Jensen, Self-avoiding walks crossing a square, J. Phys. A: Math. Gen. 38 (2005) 9159-9181, Table 2.

I. Jensen, Series Expansions for Self-Avoiding Walks.

I. Jensen, Cow patches.

CROSSREFS

Cf. A007764, A121785.

Sequence in context: A137995 A177779 A177469 * A316947 A083153 A320337

Adjacent sequences:  A121783 A121784 A121785 * A121787 A121788 A121789

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Aug 30 2006

STATUS

approved

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Last modified January 17 17:33 EST 2021. Contains 340247 sequences. (Running on oeis4.)