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A264140 Number of (n+1)X(6+1) arrays of permutations of 0..n*7+6 with each element having index change +-(.,.) 0,0 1,-2 or 1,1.

%I A264140 #6 Nov 10 2015 11:15:47
%S A264140 320,18000,1903336,163887724,15238898080,1376159333484,
%T A264140 125699825697364,11431703076430455,1041358177270016565,
%U A264140 94799852855903563200,8632210581410571081709,785952052399566693917019
%N A264140 Number of (n+1)X(6+1) arrays of permutations of 0..n*7+6 with each element having index change +-(.,.) 0,0 1,-2 or 1,1.
%C A264140 Column 6 of A264142.
%H A264140 R. H. Hardin, <a href="/A264140/b264140.txt">Table of n, a(n) for n = 1..210</a>
%H A264140 R. H. Hardin, <a href="/A264140/a264140.txt">Empirical recurrence of order 95</a>
%F A264140 Empirical recurrence of order 95 (see link above)
%e A264140 Some solutions for n=2
%e A264140 ..0..1..2..3..4.10..6....8..1..7..3..4..5..6....8..9..2..3..4.13..6
%e A264140 .15..8..9..5.19.17.18....2..0.14.15.11.20.13....7..0..1.18.16.12..5
%e A264140 .14..7.16.12.13.11.20....9.10.16.17.18.19.12...14.15.11.17.10.19.20
%Y A264140 Cf. A264142.
%K A264140 nonn
%O A264140 1,1
%A A264140 _R. H. Hardin_, Nov 04 2015