Expansion of e.g.f. (sec(x) + tan(x))*exp(-x)/(1 - x).
A307594
Expansion of e.g.f. (sec(x) + tan(x))*exp(-x)/(1 - x).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =7a(4) =28a(5) =145a(6) =880a(7) =6221a(8) =50048a(9) =452097a(10) =4531440a(11) =49919461a(12) =599595192a(13) =7799387921a(14) =109232872424
External references
- oeis: A307594