OFFSET
1,1
FORMULA
Equals Sum_{k>=0} 2^k / k!^2.
EXAMPLE
4.252350879502623825293230824089510302...
MATHEMATICA
RealDigits[BesselI[0, 2 Sqrt[2]], 10, 100][[1]]
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Ilya Gutkovskiy, Nov 28 2023
STATUS
approved