Expansion of o.g.f. 1/(1 - 4*x - 6*x^2 - 4*x^3 - x^4).
A374454
Expansion of o.g.f. 1/(1 - 4*x - 6*x^2 - 4*x^3 - x^4).
Terms
- a(0) =1a(1) =4a(2) =22a(3) =116a(4) =613a(5) =3240a(6) =17124a(7) =90504a(8) =478333a(9) =2528092a(10) =13361506a(11) =70618412a(12) =373233385a(13) =1972618128a(14) =10425707976a(15) =55102092624a(16) =291226324249
External references
- oeis: A374454