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A046826 Denominator of Sum 1/C(n,k), k=0..n. 2
1, 1, 2, 3, 3, 5, 60, 105, 35, 63, 630, 1155, 6930, 12870, 24024, 9009, 9009, 17017, 306306, 2909907, 692835, 1322685, 58198140, 111546435, 66927861, 128707425, 371821450, 717084225, 20078358300, 38818159380, 2329089562800, 4512611027925 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

REFERENCES

See A046825, which is the main entry.

LINKS

T. D. Noe, Table of n, a(n) for n=0..200

EXAMPLE

1, 2, 5/2, 8/3, 8/3, 13/5, 151/60, 256/105, 83/35, 146/63, 1433/630, 2588/1155, 15341/6930, 28211/12870, 52235/24024, 19456/9009, 19345/9009, ... = A046825/A046826

MATHEMATICA

Denominator[Table[Sum[1/Binomial[n, k], {k, 0, n}], {n, 0, 40}]] (* Harvey P. Dale, Nov 05 2011 *)

CROSSREFS

Sequence in context: A096659 A154695 A154646 * A323713 A054892 A104570

Adjacent sequences:  A046823 A046824 A046825 * A046827 A046828 A046829

KEYWORD

nonn,easy,frac,nice

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified July 11 08:50 EDT 2020. Contains 335626 sequences. (Running on oeis4.)