1864128

Appears in sequences

• Let sigma_m (n) be result of applying sum-of-divisors function m times to n; call n (m,k)-perfect if sigma_m (n) = k*n; sequence gives the (2,8)-perfect numbers.at n=12A019285
• Number of monic irreducible polynomials of degree n over GF(8) that have a given nonzero trace.at n=8A300674