A180206 Number of permutations of 0..(n-1) representable as consecutive sums of 3 adjacent elements of a sequence of n+2 nonnegative integers.

1, 2, 4, 8, 18, 56, 206, 866, 3662, 16304, 77448, 405594, 2296514, 13989280, 89990314, 612195224

Offset

1,2

Links

Table of n, a(n) for n=1..16.

Crossrefs

Sequence in context: A135422 A116723 A323020 * A058374 A007881 A367441

Adjacent sequences: A180203 A180204 A180205 * A180207 A180208 A180209

Keyword

nonn,more

Author

R. H. Hardin, Aug 15 2010

Status

approved