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A217890 Number of n element 1..n arrays with each element the minimum of 7 adjacent elements of a permutation of 1..n+6 of n+6 elements 0

%I

%S 1,3,11,45,197,903,4279,20792,103044,518864,2647244,13657284

%N Number of n element 1..n arrays with each element the minimum of 7 adjacent elements of a permutation of 1..n+6 of n+6 elements

%C Column 7 of A217891

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_ Oct 14 2012

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Last modified January 17 10:30 EST 2019. Contains 319218 sequences. (Running on oeis4.)