OFFSET
1,1
COMMENTS
Proposed by Mohammed BOUAYOUN, Feb 16 2004; computed by R. K. Guy, Feb 17 2004
EXAMPLE
The sums are f(1)=2/3, f(2)=2/3 + 3/5, f(3)=2/3+3/5+5/7, f(4)=2/3+3/5+5/7+7/11, ...
MATHEMATICA
A091852[n_] := Numerator[ Sum[ Prime[i] / Prime[i + 1], {i, n}]]; Table[ A091852[n], {n, 16}] (* Robert G. Wilson v, Mar 16 2004 *)
CROSSREFS
KEYWORD
nonn,frac
AUTHOR
N. J. A. Sloane, Mar 13 2004
EXTENSIONS
More terms from Robert G. Wilson v, Mar 16 2004
STATUS
approved