OFFSET
1,1
LINKS
Vaclav Kotesovec, Table of n, a(n) for n = 1..500
EXAMPLE
3.132799362818005226720034012858567638052280522418872401127192004180544...
MAPLE
evalf(sum((tan(1/n))^2, n=1..infinity), 120); # Vaclav Kotesovec, Oct 20 2014
MATHEMATICA
(* N[Sum[Tan[1/n]^2, {n, 1, Infinity}], 120], yields only 25 correct decimals *)
PROG
(PARI) default(realprecision, 120); sumpos(n=1, (tan(1/n))^2) \\ Vaclav Kotesovec, Oct 20 2014
CROSSREFS
KEYWORD
AUTHOR
Clark Kimberling, Oct 18 2014
STATUS
approved