A051727 Denominator of n(n-1)(n-2)/720.

1, 1, 1, 120, 30, 12, 6, 24, 15, 10, 1, 8, 6, 60, 30, 24, 3, 3, 5, 40, 2, 12, 6, 120, 15, 6, 3, 8, 10, 20, 6, 24, 3, 15, 15, 24, 2, 4, 10, 120, 3, 6, 3, 120, 30, 4, 2, 8, 15, 15, 3, 24, 6, 60, 10, 8, 1, 6, 15, 120, 6, 12, 6, 40, 5, 1, 3, 24, 30, 60, 6, 24, 1, 10

Offset

0,4

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..73.

Crossrefs

Cf. A051726.

Sequence in context: A267025 A127148 A228746 * A174867 A332417 A244950

Adjacent sequences: A051724 A051725 A051726 * A051728 A051729 A051730

Keyword

nonn,easy,frac

Author

N. J. A. Sloane

Status

approved