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A264419 Number of (n+1)X(4+1) arrays of permutations of 0..n*5+4 with each element having directed index change 0,1 2,2 1,0 -1,2 -2,-1 or -1,-1.

%I A264419 #4 Nov 12 2015 22:59:37
%S A264419 0,37,499,7311,137584,2486429,40217261,681146169,11846231201,
%T A264419 202674077729,3440768212887,58817070295375,1006675030473401,
%U A264419 17189924020400699,293506491114760927,5015242699900223807
%N A264419 Number of (n+1)X(4+1) arrays of permutations of 0..n*5+4 with each element having directed index change 0,1 2,2 1,0 -1,2 -2,-1 or -1,-1.
%C A264419 Column 4 of A264422.
%H A264419 R. H. Hardin, <a href="/A264419/b264419.txt">Table of n, a(n) for n = 1..210</a>
%e A264419 Some solutions for n=4
%e A264419 .11..0..8..2..3....6..7..8..2..3....6..7..8..9..3...11..0..1..2..3
%e A264419 .16..1.10..7..4....0.12.13.14..4....0..1..2.11..4...16.12.13.14..4
%e A264419 ..5..6.23.24..9....5.17.23..1..9...16.17.23.12.13...21..6.23..8..9
%e A264419 .21.22.12.13.14...21.11.20.24.18...21.22..5.24.14...10.22..5.24..7
%e A264419 .15.20.17.18.19...15.16.10.22.19...15.20.10.18.19...15.20.17.18.19
%Y A264419 Cf. A264422.
%K A264419 nonn
%O A264419 1,2
%A A264419 _R. H. Hardin_, Nov 12 2015