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A255943
Number of collections of nonempty multisets with a total of n objects of exactly three colors.
2
5, 33, 141, 492, 1518, 4320, 11567, 29601, 72981, 174652, 407367, 929859, 2082284, 4585752, 9947997, 21290967, 45007311, 94072878, 194580977, 398589723, 809124321, 1628620153, 3252021750, 6444843618, 12681419489, 24784331646, 48126098418, 92876836752
OFFSET
3,1
LINKS
FORMULA
a(n) = A255903(n,3).
CROSSREFS
Column k=3 of A255903.
Sequence in context: A292000 A146263 A359703 * A270222 A270279 A270690
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Mar 11 2015
STATUS
approved