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A264057 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 2,-2.

%I A264057 #6 Nov 10 2015 10:56:53
%S A264057 32,3375,207360,11151360,608212800,34260048000,1869178500000,
%T A264057 102920833800000,5656555271250000,310843030421250000,
%U A264057 17102133249581250000,940367566368000000000,51715504235250000000000
%N A264057 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 2,-2.
%C A264057 Column 6 of A264059.
%H A264057 R. H. Hardin, <a href="/A264057/b264057.txt">Table of n, a(n) for n = 1..107</a>
%e A264057 Some solutions for n=2
%e A264057 ..9.10..2.15..4..5..6....0..1.14.15.16..5..6....0.10.14..3.16..5.18
%e A264057 .16.17..0..1.11.12.13....7.17..9.19.20.12.13....7.17..9..1.11.12.13
%e A264057 .14..3..7..8.18.19.20....2..3..4..8.18.10.11....2.15..4..8..6.19.20
%Y A264057 Cf. A264059.
%K A264057 nonn
%O A264057 1,1
%A A264057 _R. H. Hardin_, Nov 02 2015