OFFSET
1,3
FORMULA
Equals Sum_{k>=1} log(k+1)/(k^2+k+1).
EXAMPLE
1.0981067917544222069517...
MAPLE
g := (1-e+e^2)^(-1) ;
x :=0.0 ;
for i from 0 to 350 do
coeftayl(g, e=0, i) ;
x-%*Zeta(1, 2+i) ;
x := evalf(%) ;
print(%) ;
end do:
PROG
(PARI) default(realprecision, 200); sumpos(k=1, log(k+1)/(k^2+k+1)) \\ Vaclav Kotesovec, Jun 28 2024
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
R. J. Mathar, Jun 19 2024
STATUS
approved