OFFSET
1,3
LINKS
G. C. Greubel, Table of n, a(n) for n = 1..1000
MathOverflow, What is a "generalized zeta function"?
EXAMPLE
1.06255080549625593786944593879337586328548415733862632010781...
MAPLE
evalf(Sum(k^(-k^2), k=1..infinity), 120); # Vaclav Kotesovec, May 21 2015
MATHEMATICA
NSum[k^(-k^2), {k, 1, Infinity}, WorkingPrecision -> 105] // RealDigits // First
PROG
(PARI) default(realprecision, 120); sumpos(k=1, k^(-k^2)) \\ Vaclav Kotesovec, May 21 2015
CROSSREFS
KEYWORD
AUTHOR
Jean-François Alcover, May 20 2015
STATUS
approved