585161

Appears in sequences

• Numbers n with the property that the difference between the two largest proper divisors of n equals the sum of proper divisors of the digit sum of n.at n=31A132783
• Number of (n+2) X 6 0..2 matrices with each 3 X 3 subblock idempotent.at n=22A224602
• a(1) = 0 and a(n+1) > a(n) is the smallest integer such that a(n+1)^2-a(n)^2 is triangular.at n=36A358416