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URL: https://oeis.org/A107394

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A107394
C(n+2,2)*C(n+4,2).
1
6, 30, 90, 210, 420, 756, 1260, 1980, 2970, 4290
OFFSET
0,1
COMMENTS
Duplicates A033487.
FORMULA
a(n)=A033487(n+1). [From R. J. Mathar, Aug 24 2008]
EXAMPLE
If n=0 then C(0+2,2)*C(0+4,2)= C(2,2)*C(4,2)=1*6=6
If n=4 then C(4+2,2)*C(4+4,2)= C(6,2)*C(8,2)=15*28=420
CROSSREFS
Cf. A062196.
Sequence in context: A009775 A297570 A119536 * A033487 A061138 A073948
KEYWORD
dead
AUTHOR
Zerinvary Lajos, May 25 2005
STATUS
approved