Numerator of Sum[ (-1)^(k-1) * 1/(Prime[k]-1)^2, {k,1,n}].

A119723

Numerator of Sum[ (-1)^(k-1) * 1/(Prime[k]-1)^2, {k,1,n}].

Terms

    a(0) =1a(1) =3a(2) =13a(3) =113a(4) =2861a(5) =709a(6) =45601a(7) =408809a(8) =49595489a(9) =2426258561a(10) =485934733a(11) =485460413a(12) =2429223061a(13) =2427480661

External references