570623341222domain: NAppears in sequencesa(n) = 2*n^n, n >= 2, otherwise a(n) = 1.at n=11A013499Numbers of the form p^11 + 11^p for p prime.at n=4A09752011^n + n^11.at n=11A177069Period of the fraction 1/11^n for n >= 1.at n=11A334603a(n) = Sum_{d|n} Sum_{p|n, p prime} n^lcm(d,p).at n=10A351845