364760483725domain: NAppears in sequencesExpansion of 1/((1-x)*(1-3*x)*(1-4*x)).at n=18A016208a(n) = Sum_{k=0..n} binomial(2*n+1,6*k).at n=20A387874a(n) = Sum_{k=0..n} binomial(4*n+1,6*k).at n=10A387876a(n) = Sum_{k=0..n} binomial(5*n+1,6*k).at n=8A387877