This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A042949 #22 Jan 31 2021 22:22:26
%S A042949 0,0,48,576,4752,36864,271680,1931808,13384320,91133664,610863072,
%T A042949 4051654752,26592186336,173304754368,1121024960064
%N A042949 Configurations of linear chains in a 4-dimensional hypercubic lattice.
%C A042949 In the notation of Nemirovsky et al. (1992), a(n), the n-th term of the current sequence is C_{n,m} with m=1 (and d=4). Here, for a d-dimensional hypercubic lattice, C_{n,m} is "the number of configurations of an n-bond self-avoiding chain with m neighbor contacts." (For d=2, we have C_{n,m=1} = A033155(n) while for d=3, we have C_{n,m=1}=A047057(n).) These numbers are given in Table I (p. 1088) in the paper by Nemirovsky et al. (1992). - _Petros Hadjicostas_, Jan 04 2019
%H A042949 A. M. Nemirovsky, K. F. Freed, T. Ishinabe, and J. F. Douglas, <a href="http://dx.doi.org/10.1007/BF01049010">Marriage of exact enumeration and 1/d expansion methods: lattice model of dilute polymers</a>, J. Statist. Phys., 67 (1992), 1083-1108.
%Y A042949 Cf. A033155, A047057.
%K A042949 nonn,more
%O A042949 1,3
%A A042949 _N. J. A. Sloane_
%E A042949 Name edited by _Petros Hadjicostas_, Jan 04 2019
%E A042949 a(12)-a(15) from _Sean A. Irvine_, Jan 31 2021