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Number of permutations of 8..n+7 with no element greater than or equal to the sum of its neighbors
0

%I #2 Mar 31 2012 12:35:48

%S 1,0,2,6,30,180,1260,10080,90720,887040,9432360,107012160,1300448160,

%T 16716051384,228160919040,3276565988040,49664631128706,788840324793320

%N Number of permutations of 8..n+7 with no element greater than or equal to the sum of its neighbors

%K nonn

%O 1,3

%A _R. H. Hardin_ Sep 23 2010