A180207 Number of permutations of 0..(n-1) representable as consecutive sums of 4 adjacent elements of a sequence of n+3 nonnegative integers.

1, 2, 4, 8, 16, 34, 82, 252, 890, 3644, 15390, 67646, 301210, 1397898, 6786792, 35154332

Offset

1,2

Links

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

Crossrefs

Sequence in context: A308031 A166354 A336009 * A013025 A034339 A244519

Adjacent sequences: A180204 A180205 A180206 * A180208 A180209 A180210

Keyword

nonn,more

Author

R. H. Hardin, Aug 15 2010

Status

approved