376736

Appears in sequences

• The 28-cycle of the n => sigma(n)-n process, where sigma(n) is the sum of divisors of n (A000203).at n=16A072890
• a(n) = Sum_{k=0..floor(n/6)} C(n-3k,3k) * 3^k * 2^(n-6k).at n=15A100139
• Conjectured list of sociable numbers.at n=28A122726