167000

Appears in sequences

• Find smallest pair (x,y) such that x^2 - y^2 = 11...1 (n times) = (10^n-1)/9; sequence gives value of x.at n=8A048611
• Expansion of e.g.f. (exp(3*x) / (2 - exp(3*x)))^(5/6).at n=5A365779
• Numbers k >= 1 such that k^2 - r^2 is a repunit (A002275) for some 1 <= r < k.at n=28A389493