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A130660
1/16 the number of permutations of 0..n having exactly 4 maxima.
0
0, 0, 0, 0, 0, 0, 17, 496, 8576, 115072, 1328336, 13899904, 135927040, 1266360320, 11385790720, 99682672640, 855303553024, 7226263666688, 60329459699712, 499027284295680
OFFSET
0,7
FORMULA
a(n) = A000517(n+1)/16. - R. J. Mathar, Mar 01 2015
CROSSREFS
Cf. A100575.
Sequence in context: A173148 A142368 A109305 * A185659 A012792 A012232
KEYWORD
nonn
AUTHOR
R. H. Hardin, Aug 11 2007
STATUS
approved