823551domain: NAppears in sequencesSums of 3 distinct powers of 7.at n=35A038482a(n) = n^n + n + 1.at n=8A066279a(n) is obtained by replacing 2's by n's in the hereditary base-2 expansion of n.at n=7A343255a(n) = n * Sum_{d|n} sigma_d(d) / d, where sigma_k(n) is the sum of the k-th powers of the divisors of n.at n=6A344787