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A132122
a(n) = n * (n+1)^2 * (3*n^2 + 4*n + 2) / 12.
1
0, 3, 33, 164, 550, 1455, 3283, 6608, 12204, 21075, 34485, 53988, 81458, 119119, 169575, 235840, 321368, 430083, 566409, 735300, 942270, 1193423, 1495483, 1855824, 2282500, 2784275, 3370653, 4051908, 4839114, 5744175, 6779855
OFFSET
0,2
COMMENTS
Sums of rows of the triangle in A132121.
FORMULA
G.f.: x*(3 + 15*x + 11*x^2 + x^3)/(1-x)^6. - Emeric Deutsch, Aug 19 2007
MAPLE
seq((1/12)*n*(n+1)^2*(3*n^2+4*n+2), n=0..32); # Emeric Deutsch, Aug 19 2007
CROSSREFS
Sequence in context: A292733 A062215 A279885 * A203560 A289083 A195578
KEYWORD
nonn,easy
AUTHOR
Reinhard Zumkeller, Aug 12 2007
STATUS
approved