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A090950 (1/24)*(n+1)*(n+3)*(n^2+22*n+88). 0
0, 11, 37, 85, 163, 280, 446, 672, 970, 1353, 1835, 2431, 3157, 4030, 5068, 6290, 7716, 9367, 11265, 13433, 15895, 18676, 21802, 25300, 29198, 33525, 38311, 43587, 49385, 55738, 62680, 70246, 78472, 87395, 97053, 107485, 118731, 130832, 143830, 157768 (list; graph; refs; listen; history; internal format)
OFFSET

-1,2

REFERENCES

P. Erdos, R. K. Guy and J. W. Moon, On refining partitions, J. London Math. Soc., 9 (1975), 565-570.

CROSSREFS

Sequence in context: A160023 A188135 A188382 * A124479 A140373 A003020

Adjacent sequences:  A090947 A090948 A090949 * A090951 A090952 A090953

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Feb 28 2004

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Last modified February 17 00:09 EST 2012. Contains 205978 sequences.