OFFSET
1,1
FORMULA
Equals 4*sqrt(2 + phi)/3 where phi = A001622.
EXAMPLE
2.536150710120409525643838222345019049081863024335333926526148385147...
MATHEMATICA
RealDigits[4 * Sqrt[GoldenRatio + 2]/3, 10, 120][[1]] (* Amiram Eldar, Jun 02 2023 *)
PROG
(PARI) 4/3*sqrt(2+(1+sqrt(5))/2)
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Hugo Pfoertner, Nov 29 2020
STATUS
approved