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A163943 Third left hand column of triangle A163940 3
0, 3, 17, 52, 121, 240, 428, 707, 1102, 1641, 2355, 3278, 4447, 5902, 7686, 9845, 12428, 15487, 19077, 23256, 28085, 33628, 39952, 47127, 55226, 64325, 74503, 85842, 98427, 112346, 127690, 144553, 163032, 183227, 205241, 229180, 255153 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

FORMULA

Gf(x) = x*(3+2*x-3*x^2+x^3)/(1-x)^5

a(n)= (2*n+45*n^2+22*n^3+3*n^4)/24

a(n) = 5*a(n-1)-10*a(n-2)+10*a(n-3)-5*a(n-4)+a(n-5)

CROSSREFS

Cf. A163972.

Equals the third left hand column of A163940.

A163944 is another left hand column.

Sequence in context: A132124 A011917 A018691 * A174285 A093418 A173733

Adjacent sequences:  A163940 A163941 A163942 * A163944 A163945 A163946

KEYWORD

easy,nonn

AUTHOR

Johannes W. Meijer (meijgia(AT)hotmail.com), Aug 13 2009

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Last modified February 15 02:35 EST 2012. Contains 205689 sequences.