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%I #19 Nov 10 2024 21:47:03
%S 1,0,1,8142,351574834,47940557125969,16985819072511102549,
%T 13519747358522016160671387,21671513613423101256198918372909,
%U 64311863997340571475504065539218471107,330586922756304429697714946501284146322953006
%N Number of permutations of 6 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="/A190835/b190835.txt">Table of n, a(n) for n = 0..100</a> (terms 1..14 from R. J. Mathar)
%F a(n) ~ sqrt(6) * 324^n * n^(5*n) / (5^n * exp(5*n + 5)). - _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 ..3....3....1....3....1....3....3....3....1....1....3....3....3....3....3....3
%e ..2....2....3....2....3....2....2....1....2....3....1....1....2....2....2....1
%e ..1....3....2....3....2....1....3....3....1....2....3....3....3....3....1....2
%e ..2....1....3....1....3....3....1....2....3....3....2....2....2....1....3....1
%e ..3....2....1....2....1....2....3....3....1....2....3....3....1....2....2....2
%e ..2....1....3....3....3....1....2....2....3....3....1....1....3....3....3....3
%e ..3....2....2....1....2....2....1....3....2....2....2....3....1....2....2....2
%e ..1....3....3....3....3....3....2....1....3....1....1....1....3....1....1....1
%e ..3....1....2....2....2....1....1....3....2....3....2....2....2....3....3....3
%e ..1....2....1....3....1....3....2....1....3....1....1....3....1....2....1....1
%e ..3....3....2....2....3....1....1....2....2....2....3....2....2....1....2....2
%e ..1....1....3....1....2....3....3....3....1....3....2....3....1....3....1....3
%e ..2....3....2....3....1....2....1....1....2....1....1....2....3....1....2....2
%e ..3....1....1....1....2....1....3....2....3....3....3....1....1....2....3....3
%e ..1....3....3....2....3....2....2....1....1....2....2....2....2....1....1....1
%e ..2....2....1....1....1....3....3....2....3....1....3....1....3....3....3....3
%Y Row n=6 of A322013.
%K nonn
%O 0,4
%A _R. H. Hardin_, May 21 2011
%E a(0)=1 prepended by _Seiichi Manyama_, Nov 16 2018