OFFSET
1,1
LINKS
Stanislav Sykora, Table of n, a(n) for n = 1..2000
Wikipedia, Platonic solid.
FORMULA
Equals Pi - arctan(2/11).
EXAMPLE
2.9617391537973149678740903860233946481841958625459137019202715623145...
MATHEMATICA
RealDigits[Pi - ArcTan[2/11], 10, 120][[1]] (* Amiram Eldar, May 22 2023 *)
PROG
(PARI) Pi-atan(2/11)
CROSSREFS
KEYWORD
AUTHOR
Stanislav Sykora, Jan 28 2014
STATUS
approved