Product_{n>=1} (1 + a(n)*x^n/n!) = 1 + tanh(x).
A353779
Product_{n>=1} (1 + a(n)*x^n/n!) = 1 + tanh(x).
Terms
- a(0) =1a(1) =0a(2) =-2a(3) =8a(4) =-24a(5) =144a(6) =-720a(7) =7552a(8) =-35840a(9) =427520a(10) =-3628800a(11) =45415424a(12) =-479001600a(13) =7094226944a(14) =-82614884352
External references
- oeis: A353779