a(n) = [x^n] ((Sum_{k=0..n} (k+7)!*x^k)/(Sum_{k=0..n} (k+7)!*(-x)^k))^(1/8).
A303569
a(n) = [x^n] ((Sum_{k=0..n} (k+7)!*x^k)/(Sum_{k=0..n} (k+7)!*(-x)^k))^(1/8).
Terms
- a(0) =1a(1) =2a(2) =2a(3) =80a(4) =158a(5) =9428a(6) =21740a(7) =1814144a(8) =4326566a(9) =480716188a(10) =1138919436a(11) =162673628256a(12) =377710551084
External references
- oeis: A303569