E.g.f.: Product_{k>=1} 1/(1 - tan(x^k)).
A270665
E.g.f.: Product_{k>=1} 1/(1 - tan(x^k)).
Terms
- a(0) =1a(1) =1a(2) =4a(3) =20a(4) =136a(5) =1016a(6) =10112a(7) =102080a(8) =1259648a(9) =16501888a(10) =243214592a(11) =3792156928a(12) =66314635264
External references
- oeis: A270665