73338domain: NAppears in sequencesNumbers k such that 19*2^k+1 is prime.at n=15A032359Super-5 Numbers (5 * n^5 contains substring '55555' in its decimal expansion).at n=17A032745Number of polyominoes with n cells, symmetric about diagonal 2.at n=41A056878a(n) = Sum_{k + l*m <= n} (k + l*m), with 0 <= k,l,m <= n.at n=32A106846