11593725domain: NAppears in sequencesPartial sums of A027818.at n=20A0342661/256 of tenth unsigned column of triangle A053120 (T-Chebyshev, rising powers, zeros omitted).at n=19A054333a(n) = binomial(3*n,n)*(5*n+2)/(2*n+1).at n=9A249691