Expansion of e.g.f. Product_{k>=1} (sec(x^k) + tan(x^k)).
A330518
Expansion of e.g.f. Product_{k>=1} (sec(x^k) + tan(x^k)).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =14a(4) =77a(5) =536a(6) =4471a(7) =41474a(8) =437737a(9) =5206120a(10) =67098091a(11) =944705662a(12) =14495605277a(13) =237203399044
External references
- oeis: A330518