E.g.f.: exp( x/( 1 - x - x^2 - x^3 ) ).
A080835
E.g.f.: exp( x/( 1 - x - x^2 - x^3 ) ).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =19a(4) =169a(5) =1761a(6) =22171a(7) =325123a(8) =5416209a(9) =101177569a(10) =2093489011a(11) =47501861331
External references
- oeis: A080835