Coefficient of x^2 in the reduction of the polynomial (x^2 + 2)^n by x^3 -> x^2 + 2.
A192810
Coefficient of x^2 in the reduction of the polynomial (x^2 + 2)^n by x^3 -> x^2 + 2.
Terms
- a(0) =0a(1) =1a(2) =5a(3) =23a(4) =109a(5) =527a(6) =2565a(7) =12503a(8) =60957a(9) =297183a(10) =1448821a(11) =7063207a(12) =34434061a(13) =167870511a(14) =818390501a(15) =3989759863a(16) =19450597117a(17) =94824185471a(18) =462280211797
External references
- oeis: A192810