OFFSET
1,4
COMMENTS
This is the sum of the inverse of odd numbers raised to the even numbers.
FORMULA
Equals Sum_{n>=1} 1/A222621(n).
EXAMPLE
1.0124098527659873204681857270193548770717264307070789173009...
PROG
(PARI) suminf(n=1, (2*n-1)^(-2*n))
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Mario Cortés, Oct 14 2020
STATUS
approved