100000009domain: NAppears in sequencesNumbers k such that k^2 contains only digits {0,1,8}, not ending with zero.at n=20A058421Numbers of the form 10^k + 1, 3, 7, or 9 for k>=1.at n=31A088265Where records occur in A118514.at n=31A118516a(n) = 10^n + 9.at n=8A253213Smallest n-digit number ending in n.at n=8A266959