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 A190834 Number of permutations of 5 copies of 1..n introduced in order 1..n with no element equal to another within a distance of 2 0

%I

%S 0,0,1,15743,312841383,10691055854826,628262652845622327

%N Number of permutations of 5 copies of 1..n introduced in order 1..n with no element equal to another within a distance of 2

%e Some solutions for n=4

%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....3....3....3....3....3....3....3....3....3....3....3....3....3....3

%e ..4....1....1....4....1....1....4....1....4....1....4....1....4....4....1....4

%e ..2....2....2....1....2....4....2....4....2....4....1....4....1....2....4....2

%e ..1....4....3....2....4....2....1....3....1....3....2....3....2....3....2....1

%e ..4....1....4....4....3....1....4....1....3....2....4....2....3....4....3....4

%e ..2....3....1....3....1....4....3....4....4....4....1....4....4....2....1....3

%e ..3....4....2....2....4....2....2....2....1....1....3....1....2....1....4....1

%e ..4....2....3....1....2....3....4....3....3....2....2....2....1....3....3....2

%e ..1....1....4....4....3....4....1....4....2....3....4....4....4....4....2....4

%e ..3....4....2....3....4....1....3....1....4....1....1....3....3....1....1....3

%e ..4....3....3....2....1....3....2....2....1....2....3....2....1....2....4....1

%e ..1....2....4....1....3....2....4....4....2....4....2....4....2....4....3....4

%e ..3....4....2....3....4....4....1....1....3....3....4....1....3....3....2....3

%e ..2....3....1....4....2....3....3....3....4....1....3....3....4....1....4....2

%e ..4....1....4....2....1....1....4....2....2....4....2....4....2....2....1....4

%e ..3....2....3....3....3....2....1....4....1....2....4....1....1....3....2....3

%e ..1....4....1....1....4....3....3....3....4....3....3....2....3....4....3....2

%e ..2....3....4....4....2....4....2....2....3....4....1....3....4....1....4....1

%K nonn

%O 1,4

%A _R. H. Hardin_ May 21 2011

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Last modified September 20 03:47 EDT 2021. Contains 347577 sequences. (Running on oeis4.)