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%I #14 Nov 24 2018 10:44:17
%S 1,0,1,400598,1530622143864,28920026907938624194,
%T 2070756746775910218326948065,459408385876250801291447710561829082,
%U 271259741131895052775392614041761701799270286,379065045836307787068046364731543393514652159389593652
%N Number of permutations of 8 copies of 1..n introduced in order 1..n with no element equal to another within a distance of 1.
%H Seiichi Manyama, <a href="/A190837/b190837.txt">Table of n, a(n) for n = 0..78</a>
%F a(n) ~ sqrt(8) * 131072^n * n^(7*n) / (315^n * exp(7*n + 7)). - _Vaclav Kotesovec_, Nov 24 2018
%e Some solutions for n=3
%e ..1....1....1....1....1....1....1....1....1....1....1....1....1....1....1....1
%e ..2....2....2....2....2....2....2....2....2....2....2....2....2....2....2....2
%e ..1....1....1....1....1....1....1....1....1....1....1....1....1....1....1....1
%e ..2....2....2....3....2....3....2....2....3....2....2....2....3....2....2....2
%e ..3....3....3....1....3....1....1....1....1....1....1....3....1....3....3....3
%e ..2....1....1....3....1....2....2....3....2....3....3....1....3....1....2....1
%e ..3....3....2....1....2....1....3....2....3....1....1....3....1....3....3....2
%e ..1....2....3....2....1....2....1....1....2....3....3....2....2....2....2....3
%e ..3....1....1....1....3....1....2....3....3....2....1....1....3....3....3....2
%e ..1....3....2....2....2....2....1....2....1....1....2....3....1....1....2....3
%e ..2....1....1....1....3....3....3....1....3....3....1....2....3....3....3....1
%e ..1....3....3....3....1....1....1....2....1....2....2....3....2....2....1....3
%e ..2....2....1....2....3....3....2....3....3....3....3....2....3....3....2....2
%e ..3....3....3....3....1....1....3....1....2....2....2....3....2....2....1....3
%e ..1....1....2....2....3....3....2....3....1....3....3....1....1....3....2....1
%e ..3....3....3....3....2....2....3....2....3....2....1....3....3....1....3....3
%e ..2....2....1....1....3....3....1....3....2....1....2....1....2....3....1....2
%e ..1....3....3....3....2....2....3....2....3....3....3....2....1....2....3....1
%e ..3....2....2....2....3....1....1....1....2....2....2....1....2....3....1....2
%e ..2....1....3....3....1....3....3....3....3....3....3....3....3....1....3....3
%e ..3....2....1....2....2....2....2....1....2....1....1....1....2....2....1....1
%e ..1....3....2....3....1....3....3....3....1....3....3....2....1....1....3....3
%e ..2....2....3....1....3....2....2....2....2....2....2....3....3....2....2....2
%e ..3....1....2....2....2....3....3....3....1....1....3....2....2....1....1....1
%K nonn
%O 0,4
%A _R. H. Hardin_ May 21 2011
%E a(0)=1 prepended and a(7)-a(9) added by _Seiichi Manyama_, Nov 16 2018
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