OFFSET
1,1
LINKS
Michelle Huff, Table of n, a(n) for n = 1..10000
EXAMPLE
(2/37)*(42 + 25 Sqrt[3]) = 4.61087946968767201828033289392685454992..., the sum of two easily recognized geometric series that have common ratio (3/4)^(3/2).
MATHEMATICA
r = Sqrt[3]/2; u = Simplify[r (1 + r)/(1 - r^3)]
RealDigits[N[u, 1200], 10][[1]]
PROG
(PARI) suminf(n=1, abs(sin((n*Pi)/3))^n) \\ Michel Marcus, Oct 29 2016
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Michelle Huff, Oct 28 2016
STATUS
approved