-563200domain: ZAppears in sequencesTriangle T(n, k) = H(n, k+1) - 2*H(n, k) - H(n, k-1), where H(n, k) = A060821(n+3, k), read by rows.at n=35A140873a(n) = Sum_{k=0..n} (-1)^k * binomial(n,k^2).at n=23A307093Expansion of Product_{k>=1} (1 - (x*(1 - x))^k).at n=31A327671