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 A264340 #4 Nov 11 2015 19:42:42 %S A264340 9409,1759250,345358201,67833964762,13323150080401,2616784941180034, %T A264340 513959727627375369,100946240914292115722,19826735452231888373729, %U A264340 3894146380641069135233138,764844826340243559292129305 %N A264340 Number of (n+1)X(7+1) arrays of permutations of 0..n*8+7 with each element having index change +-(.,.) 0,0 0,1 or 1,2. %C A264340 Column 7 of A264341. %H A264340 R. H. Hardin, <a href="/A264340/b264340.txt">Table of n, a(n) for n = 1..210</a> %F A264340 Empirical: a(n) = 191*a(n-1) +1102*a(n-2) -7594*a(n-3) -38349*a(n-4) +38507*a(n-5) %e A264340 Some solutions for n=1 %e A264340 ..1..0..3..2..5..4..6..7....0..1..2..3..4..5..7..6....0..2..1..3.14.15..7..6 %e A264340 ..8.10..9.11.12.13.15.14....9..8.10.11.12.14.13.15....8.10..9.11.13.12..4..5 %Y A264340 Cf. A264341. %K A264340 nonn %O A264340 1,1 %A A264340 _R. H. Hardin_, Nov 11 2015