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A002903 Number of n-step self-avoiding walks on b.c.c. lattice.
(Formerly M3624 N1472)

%I M3624 N1472

%S 1,4,28,196,1324,8980,60028,402412,2675860,17826340,118145548,

%T 784024780,5184334996,34313323804,226516271020,1496391824212

%N Number of n-step self-avoiding walks on b.c.c. lattice.

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

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

%H D. S. McKenzie and C. Domb, <a href="https://doi.org/10.1088/0370-1328/92/3/316">The second osmotic virial coefficient of athermal polymer solutions</a>, Proceedings of the Physical Society, 92 (1967) 632-649.

%H <a href="/index/Ba#bcc">Index entries for sequences related to b.c.c. lattice</a>

%F Apparently a(n) = A001666(n-1)/2 for n > 1. - _Andrey Zabolotskiy_, Dec 29 2018

%Y Cf. A001666.

%K nonn,walk,more

%O 1,2

%A _N. J. A. Sloane_

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Last modified August 10 02:28 EDT 2020. Contains 336367 sequences. (Running on oeis4.)