G.f.: 1/(1 - (1*x)/(1 - (2*x)^2/(1 - (3*x)^3/(1 - (4*x)^4/(1 - (5*x)^5/(1 - ...)))))).
A343420
G.f.: 1/(1 - (1*x)/(1 - (2*x)^2/(1 - (3*x)^3/(1 - (4*x)^4/(1 - (5*x)^5/(1 - ...)))))).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =5a(4) =9a(5) =29a(6) =173a(7) =397a(8) =1629a(9) =7105a(10) =47317a(11) =136649a(12) =612009a(13) =3239657a(14) =16725833a(15) =144512653a(16) =442002033a(17) =2348928709a(18) =13503344821a(19) =87284090069a(20) =570544117893
External references
- oeis: A343420