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%I #3 Oct 14 2012 08:31:37
%S 1,3,11,45,196,898,4272,21002,106564,558780,3037926,17203726,
%T 101981944,635338608
%N Number of n element 1..n arrays with each element the minimum of 4 adjacent elements of a permutation of 1..n+3 of n+3 elements
%C Column 4 of A217891
%e Some solutions for n=4
%e ..1....4....1....2....2....1....1....1....3....4....3....1....4....1....1....1
%e ..3....1....4....2....2....2....2....1....3....3....2....1....2....1....3....3
%e ..2....1....2....1....3....4....2....3....1....1....2....2....1....1....3....4
%e ..2....1....2....1....1....3....2....3....1....1....1....4....1....3....2....2
%K nonn
%O 1,2
%A _R. H. Hardin_ Oct 14 2012
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