A180205 - OEIS

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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, 2, 4, 12, 44, 176, 768, 4000, 22896, 142336, 967040, 7258368, 57919872, 490253312, 4455645952, 43468799232, 445393216256

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Table of n, a(n) for n=1..17.

CROSSREFS

Sequence in context: A348926 A039301 A346505 * A131529 A238111 A165901

Adjacent sequences: A180202 A180203 A180204 * A180206 A180207 A180208

KEYWORD

nonn,more

AUTHOR

R. H. Hardin, Aug 15 2010

STATUS

approved