56750

Appears in sequences

• a(n) = binomial(2*n-2,n-1)/n - 2^(n-1) + n.at n=11A004303
• Numbers k such that phi(k) | sigma_14(k).at n=26A015773
• Expansion of psi(q^2) / f(-q)^2 in powers of q where psi(), f() are Ramanujan theta functions.at n=21A137829