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A024178 [ (3rd elementary symmetric function of 2,3,...,n+3)/(2+3+...+n+3) ]. 0
2, 11, 29, 61, 115, 196, 312, 474, 690, 971, 1331, 1781, 2335, 3010, 3820, 4782, 5916, 7239, 8771, 10535, 12551, 14842, 17434, 20350, 23616, 27261, 31311, 35795, 40745, 46190, 52162, 58696, 65824, 73581, 82005, 91131, 100997, 111644, 123110, 135436 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..40.

FORMULA

G.f.: x(x^3-3x^2+3x+2)/[(1-x^3)(1-x)^4].

CROSSREFS

Sequence in context: A046500 A062123 A117560 * A009312 A154251 A092275

Adjacent sequences:  A024175 A024176 A024177 * A024179 A024180 A024181

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified May 23 19:22 EDT 2013. Contains 225611 sequences.