11582386286
domain: N
Appears in sequences
- a(n) = Sum_{k=0..n} binomial(6*n,6*k).at n=6A070967
- Expansion of g.f.: (1-2*x)*(1-4*x+x^2)/((1-x)*(1-3*x)*(1-4*x)).at n=18A087433
- a(n) = Sum_{k=0..n} C(n^2, n*k).at n=6A167009
- Constant term of the reduction of the polynomial p(n,x)=(1/2)((x+2)^n+(x-2)^n) by x^2->x+2.at n=18A192355
- Cogrowth sequence of the 12-element group C6 X C2 = <S,T | S^6, T^2, [S,T]>.at n=18A377627
- Cogrowth sequence for the 18-element group C6 X C3 = <S,T | S^6, T^3, [S,T]>.at n=12A378031
- a(n) = Sum_{k=0..n} binomial(4*n,6*k).at n=9A387849
- a(n) = Sum_{k=0..n} binomial(5*n+1,6*k).at n=7A387877