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A341597
a(n) = A144066(n+3,3).
0
1, 60, 490, 2220, 7315, 19656, 45780, 95880, 184965, 334180, 572286, 937300, 1478295, 2257360, 3351720, 4856016, 6884745, 9574860, 13088530, 17616060, 23378971, 30633240, 39672700, 50832600, 64493325, 81084276, 101087910
OFFSET
0,2
FORMULA
O.g.f.: (15*x^3 + 91*x^2 + 53*x + 1)/(1 - x)^7.
CROSSREFS
Cf. A144066.
Sequence in context: A097387 A057096 A246774 * A334306 A069140 A229376
KEYWORD
nonn,easy
AUTHOR
Petros Hadjicostas, Feb 15 2021
STATUS
approved