Coefficient of x^n in the expansion of ( (1-x) / (1-x-x^2)^2 )^n.
A370618
Coefficient of x^n in the expansion of ( (1-x) / (1-x-x^2)^2 )^n.
Terms
- a(0) =1a(1) =1a(2) =7a(3) =34a(4) =191a(5) =1071a(6) =6154a(7) =35729a(8) =209455a(9) =1236508a(10) =7341577a(11) =43792112a(12) =262230242a(13) =1575391156a(14) =9490934411a(15) =57316715079a(16) =346875036879
External references
- oeis: A370618