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A002903 Number of n-step self-avoiding walks on b.c.c. lattice.
(Formerly M3624 N1472)
2
1, 4, 28, 196, 1324, 8980, 60028, 402412, 2675860, 17826340, 118145548, 784024780, 5184334996, 34313323804, 226516271020, 1496391824212 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

REFERENCES

N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

LINKS

Table of n, a(n) for n=1..16.

D. S. McKenzie and C. Domb, The second osmotic virial coefficient of athermal polymer solutions, Proceedings of the Physical Society, 92 (1967) 632-649.

Index entries for sequences related to b.c.c. lattice

FORMULA

Apparently a(n) = A001666(n-1)/2 for n > 1. - Andrey Zabolotskiy, Dec 29 2018

CROSSREFS

Cf. A001666.

Sequence in context: A001396 A155611 A218175 * A208704 A270471 A019482

Adjacent sequences:  A002900 A002901 A002902 * A002904 A002905 A002906

KEYWORD

nonn,walk,more

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified June 26 20:03 EDT 2019. Contains 324380 sequences. (Running on oeis4.)