68753

Appears in sequences

• Composite numbers which in base 9 contain their largest proper factor as a substring.at n=8A063172
• Duplicate of A063172.at n=8A063879
• Coefficients in the power series A(x) such that: A(x)^4 = Sum_{n=-oo..+oo} x^(3*n+2) * (1 - x^(n-1))^(n+1) * A(x)^n.at n=6A357164