login
A054117
T(n,n-2), array T as in A054115.
0
1, 6, 30, 150, 870, 5910, 46230, 409110, 4037910, 43954710, 522956310, 6749977110, 93928268310, 1401602636310, 22324392524310, 378011820620310, 6780385526348310
OFFSET
2,2
LINKS
FORMULA
Conjecture: a(n) -(n+1)*a(n-1) +n*a(n-2)=0. - R. J. Mathar, Jun 13 2013
CROSSREFS
Sequence in context: A003948 A105488 A252699 * A033132 A022023 A066534
KEYWORD
nonn
STATUS
approved