549549

Appears in sequences

• Triangle of Stirling numbers of order 3.at n=28A059022
• Numbers k that divide sigma(k^2) where sigma is the sum of divisors function (A000203).at n=10A232354
• a(n) is the number of ways of putting n labeled balls into 3 indistinguishable boxes such that each box contains at least 3 balls.at n=5A272982