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%I #6 Nov 10 2015 12:14:32
%S 159,39807,10791350,2861438066,769775248717,206581153730159,
%T 55588636099730695,14963969410163493167,4031070371116891657348,
%U 1086255512881457026146614,292787152002616412026152849
%N Number of (n+1)X(7+1) arrays of permutations of 0..n*8+7 filled by rows with each element moved a city block distance of 0 or 1, and rows and columns in increasing lexicographic order.
%C Column 7 of A263519.
%H R. H. Hardin, <a href="/A263518/b263518.txt">Table of n, a(n) for n = 1..68</a>
%e Some solutions for n=2
%e ..0..1..2..3..4..5..6..7....0..1..3..4.12.13.14.15....0..1..2..3..4..5..7.15
%e ..8..9.10.11.12.13.15.14....8..9..2.10.11..5..6..7....9..8.11.10.20.13..6.23
%e .16.17.19.18.20.21.23.22...16.17.18.19.20.21.23.22...16.17.18.19.12.21.14.22
%Y Cf. A263519.
%K nonn
%O 1,1
%A _R. H. Hardin_, Oct 19 2015
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