Denominators of the coefficients in exp(2x/(1-x)) power series.
A067655
Denominators of the coefficients in exp(2x/(1-x)) power series.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =3a(4) =15a(5) =45a(6) =315a(7) =315a(8) =2835a(9) =14175a(10) =155925a(11) =467775a(12) =6081075a(13) =3869775a(14) =638512875a(15) =638512875a(16) =10854718875a(17) =8881133625
External references
- oeis: A067655