login
A099949
Number of crossing partitions of n.
1
1, 5, 20, 84, 388, 1951, 10529, 60478, 367953, 2362503, 15955673, 113015123, 837307541, 6473306155, 52110629576, 435951806195, 3783475965645, 34007779661168, 316120859847935, 3034730002671251, 30048957645720682, 306529788241138211, 3217941347005747296, 34730178825735671711, 384990885899299757336, 4379518943963832643173, 51083106730348426001558
OFFSET
4,2
CROSSREFS
Sequence in context: A056884 A006749 A002213 * A006231 A373340 A069007
KEYWORD
nonn,easy,nice
AUTHOR
N. J. A. Sloane, Nov 12 2004
EXTENSIONS
More terms from Vladeta Jovovic, Jul 11 2007
STATUS
approved