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A180205
Number of permutations of 0..(n-1) representable as consecutive sums of 2 adjacent elements of a sequence of n+1 nonnegative integers
1
1, 2, 4, 12, 44, 176, 768, 4000, 22896, 142336, 967040, 7258368, 57919872, 490253312, 4455645952, 43468799232, 445393216256
OFFSET
1,2
CROSSREFS
Sequence in context: A348926 A039301 A346505 * A131529 A238111 A165901
KEYWORD
nonn
AUTHOR
R. H. Hardin Aug 15 2010
STATUS
approved