1170625

Appears in sequences

• Cyclops octagonal numbers: a(n) = n*(3*n-2) with one "zero" digit in the middle.at n=11A285767
• a(n) = Sum_{1 <= x_1, x_2, x_3, x_4 <= n} gcd(x_1, x_2, x_3, x_4, n)^4.at n=24A372931