31622776602domain: NAppears in sequencesPowers of sqrt(10) rounded to nearest integer.at n=21A017935Smallest number whose square has n digits.at n=21A017936Numbers k such that k^3 starts with k itself (in base 10).at n=17A052210a(n) = sqrt(A077204(n)).at n=21A077205Triangular number index of A077206(n).at n=20A077207