a(n) = numerator of the coefficient c(n) of x^n in (tan x)/Product_{0 < k < n} 1 + c(k)*x^k, n = 1, 2, 3, ...
A170918
a(n) = numerator of the coefficient c(n) of x^n in (tan x)/Product_{0 < k < n} 1 + c(k)*x^k, n = 1, 2, 3, ...
Terms
- a(0) =1a(1) =-1a(2) =7a(3) =-14a(4) =54a(5) =-1112a(6) =6574a(7) =-48488a(8) =1143731a(9) =-14813072a(10) =16252211a(11) =-3500388967a(12) =125127865048a(13) =-158589803803
External references
- oeis: A170918