78296

Appears in sequences

• E.g.f.: x/(1-sinh(x)).at n=8A109570
• Numbers k such that 3^k + k^3 is prime.at n=4A253471
• a(n) = Sum_{k=0..n} r_4(k^2 + 1), where r_4(k) is the number of ways of writing k as a sum of 4 squares (A000118).at n=27A333174
• Sum of numbers of ways to choose a k-chain of divisors of n - k, for k = 0..n - 1.at n=39A343940