Coefficient of x^n in the expansion of ( (1-x+x^2) / (1-x)^3 )^n.
A372410
Coefficient of x^n in the expansion of ( (1-x+x^2) / (1-x)^3 )^n.
Terms
- a(0) =1a(1) =2a(2) =12a(3) =77a(4) =516a(5) =3552a(6) =24891a(7) =176647a(8) =1265508a(9) =9132530a(10) =66288762a(11) =483442434a(12) =3539626635a(13) =26002266656a(14) =191556630375
External references
- oeis: A372410