57893

Appears in sequences

• Numbers k such that |2^k-993| is prime.at n=27A165779
• Expansion of Product_{k>=1} ((1 + k*x^k) / (1 - 2*x^k)).at n=12A269144
• Sum of 4th powers of proper divisors of n.at n=44A279363
• Solution of the complementary equation a(n) = 4*a(n-2) + b(n-1) + b(n-2), where a(0) = 1, a(1) = 3, b(0) = 2, and (a(n)) and (b(n)) are increasing complementary sequences.at n=14A295063
• Sum of the 4th powers of the odd proper divisors of n.at n=44A352032