64575

Appears in sequences

• a(n) = (n^2 + 1) * (2*n - 1).at n=31A290631
• Numbers m such that both m^2-1 and m^2 are refactorable numbers (A033950) and that m^2 has more divisors than m^2-1.at n=31A342970
• Odd numbers m such that at least one of the factors of Stern polynomial B(m,x) has at least one negative coefficient.at n=29A389915