614283

Appears in sequences

• Triangle T(n,k) = 10^(n-1) -1 + k*floor(9*10^(n-1)/(n+1)), with 1 <= r <= n, read by rows.at n=18A093850
• Numbers k such that there are exactly five biquadratefree powerful numbers (A338325) between k^2 and (k+1)^2.at n=33A338392