A180215 Number of permutations of 0..(n-1) representable as 1,4,6,4,1-weighted consecutive sums of 5 adjacent elements of a sequence of n+4 nonnegative integers.

1, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 12, 48, 176, 444, 420, 2124, 8056, 12944

Offset

1,2

Links

Table of n, a(n) for n=1..24.

Crossrefs

Sequence in context: A367996 A098940 A098939 * A228552 A240066 A240067

Adjacent sequences: A180212 A180213 A180214 * A180216 A180217 A180218

Keyword

nonn,more

Author

R. H. Hardin, Aug 15 2010

Status

approved