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A051726 Numerator of n(n-1)(n-2)/720. 1
0, 0, 0, 1, 1, 1, 1, 7, 7, 7, 1, 11, 11, 143, 91, 91, 14, 17, 34, 323, 19, 133, 77, 1771, 253, 115, 65, 195, 273, 609, 203, 899, 124, 682, 748, 1309, 119, 259, 703, 9139, 247, 533, 287, 12341, 3311, 473, 253, 1081, 2162, 2303, 490, 4165, 1105, 11713 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,8

REFERENCES

R. L. Graham, D. E. Knuth and O. Patashnik, Concrete Mathematics. Addison-Wesley, Reading, MA, 1990, p. 269.

LINKS

Table of n, a(n) for n=0..53.

CROSSREFS

Cf. A051727.

Sequence in context: A131685 A019860 A011422 * A139824 A019799 A216159

Adjacent sequences:  A051723 A051724 A051725 * A051727 A051728 A051729

KEYWORD

nonn,easy,frac

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified November 13 19:25 EST 2018. Contains 317149 sequences. (Running on oeis4.)