74909domain: NAppears in sequencesT(n+3,3) with T as in A036355.at n=12A036682Constant term of the reduction by x^2->x+1 of the polynomial p(n,x) defined below in Comments.at n=10A192379a(n) = Sum_{k=0..n} binomial(n,k) * A000108(k) * k^(n-k).at n=7A349603