cp's OEIS Frontend

A264555 Number of (6+1)X(n+1) arrays of permutations of 0..n*7+6 with each element having directed index change -1,1 -1,2 1,0 or 0,-1.

%I A264555 #4 Nov 17 2015 15:41:07
%S A264555 0,44,400,4640,105081,1994830,29691127,480994368,8117368800,
%T A264555 132754460552,2133045608920,34553147199456,560889832726788,
%U A264555 9059789552261840,146150531190902752,2359511442598185984,38084486000051713136
%N A264555 Number of (6+1)X(n+1) arrays of permutations of 0..n*7+6 with each element having directed index change -1,1 -1,2 1,0 or 0,-1.
%C A264555 Row 6 of A264550.
%H A264555 R. H. Hardin, <a href="/A264555/b264555.txt">Table of n, a(n) for n = 1..190</a>
%e A264555 Some solutions for n=4
%e A264555 ..1..5..6..4..8....1..2..6..4..8....1..2..3..7..8....1..2..3..4..7
%e A264555 ..0..7..2..3.13....0..7.11..3.13....0.10.11.12..4....0.10.11..9.12
%e A264555 .11.15.16.14..9....5.12.16.14..9....5..6.13.14..9....5..6.15..8.18
%e A264555 .10.20.12.19.23...10.17.21.19.22...16.17.21.19.22...16.17.20.13.14
%e A264555 .21.22.17.18.28...15.25.26.18.28...15.25.26.18.27...21.22.23.27.19
%e A264555 .26.27.30.31.24...20.27.30.23.24...20.30.28.23.24...26.30.28.31.24
%e A264555 .25.32.33.34.29...31.32.33.34.29...31.32.33.34.29...25.32.33.34.29
%Y A264555 Cf. A264550.
%K A264555 nonn
%O A264555 1,2
%A A264555 _R. H. Hardin_, Nov 17 2015