133057domain: NAppears in sequencesExpansion of 1/((1-3*x)*(1-4*x)*(1-5*x)).at n=6A016753Triangle read by rows: 3-Stirling numbers of the second kind.at n=38A143495Square array A(n, k) = ((k+2)^(n+2) - 2 * (k+1)^(n+2) + k^(n+2))/2 for k, n >= 0 read by ascending antidiagonals.at n=48A372118