cp's OEIS Frontend

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.

A264169 Number of (n+1)X(4+1) arrays of permutations of 0..n*5+4 with each element having directed index change 0,0 0,1 1,0 -2,-1 or -1,-2.

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%I A264169 #6 Nov 10 2015 11:45:49
%S A264169 16,418,6017,96296,1531900,23916656,375202191,5888212022,92168640612,
%T A264169 1442827111989,22591182170328,353674847153160,5536572579026045,
%U A264169 86672265314527134,1356811283581926803,21240085911830680491
%N A264169 Number of (n+1)X(4+1) arrays of permutations of 0..n*5+4 with each element having directed index change 0,0 0,1 1,0 -2,-1 or -1,-2.
%C A264169 Column 4 of A264172.
%H A264169 R. H. Hardin, <a href="/A264169/b264169.txt">Table of n, a(n) for n = 1..210</a>
%e A264169 Some solutions for n=4
%e A264169 ..0..8..2.14..4....0.12..2..3..4...11.12..1.14..4....7..1..9..2..3
%e A264169 ..5..1.18..3..9....5..1..6.19..8....0..6..2..3..8....0..6.18..8..4
%e A264169 .10..6..7.12.13...17.10..7.24..9....5.22..7.13..9....5.10.19.24.13
%e A264169 .15.11.24.17.19...15.11.16.13.14...10.15.16.18.19...15.11.12.17.14
%e A264169 .20.16.21.22.23...20.21.22.18.23...20.21.17.23.24...20.16.21.22.23
%Y A264169 Cf. A264172.
%K A264169 nonn
%O A264169 1,1
%A A264169 _R. H. Hardin_, Nov 06 2015