130169

Appears in sequences

• Reversion of y - y^2 + y^3 - y^4.at n=16A063019
• Composite squarefree numbers n such that p-d(n) divides n+d(n), where p are the prime factors of n and d(n) the number of divisors of n.at n=23A228301
• 4-brilliant numbers with distinct prime factors.at n=27A376864