A068775 Duplicate of A068774.

0, 0, 0, 8, 40, 240, 1120, 4480, 17280, 65280

Offset

1,4

Links

Table of n, a(n) for n=1..10.

Crossrefs

Sequence in context: A051199 A228679 A188234 * A068774 A073955 A264332

Adjacent sequences: A068772 A068773 A068774 * A068776 A068777 A068778

Keyword

dead

Status

approved