OFFSET
1,1
LINKS
Vaclav Kotesovec, Table of n, a(n) for n = 1..297
FORMULA
EXAMPLE
2.0344489454876164779803555318869026355979439863702376260005284165650078277571...
MAPLE
evalf(exp(-gamma^2 + Sum((-1)^j*Zeta(j)^2/j, j=2..infinity)), 100);
MATHEMATICA
slogam = Table[Sum[LogGamma[1/j], {j, 1, n}], {n, 1, 1000}]; $MaxExtraPrecision = 1000; funs[n_] := E^slogam[[n]] * n^EulerGamma/n!; Do[Print[N[Sum[(-1)^(m + j) * funs[j*Floor[Length[slogam]/m]] * (j^(m - 1)/(j - 1)!/(m - j)!), {j, 1, m}], 80]], {m, 10, 100, 10}]
PROG
(PARI) exp(-Euler^2 + sumalt(j=2, (-1)^j*zeta(j)^2/j))
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Vaclav Kotesovec, Mar 08 2019
STATUS
approved