OFFSET
4,2
LINKS
Juan M. Maldacena, The Large N Limit of Superconformal Field Theories and Supergravity, arXiv:hep-th/9711200v3, 1997-1998, p. 11.
FORMULA
Equals Product_{k=1..15, gcd(k,15)==1} Gamma(k/15). - Amiram Eldar, Jun 12 2021
EXAMPLE
1558.545456544038995783...
MATHEMATICA
RealDigits[(2*Pi)^4, 10, 100][[1]] (* Amiram Eldar, Jun 12 2021 *)
PROG
(PARI) 16*Pi^4 \\ Charles R Greathouse IV, Oct 01 2022
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Omar E. Pol, Aug 11 2012
STATUS
approved