OFFSET
1,2
MATHEMATICA
Table[Numerator[Sum[(-1)^(k+1)/Prime[k]^2, {k, 1, n}]], {n, 1, 20}]
PROG
(Magma) [Numerator(&+[(-1)^(k+1)/NthPrime(k)^2:k in [1..n]]): n in [1..13]]; // Marius A. Burtea, Aug 26 2019
CROSSREFS
KEYWORD
nonn,frac
AUTHOR
Alexander Adamchuk, Dec 27 2007
STATUS
approved