364536domain: NAppears in sequencesNumbers that are the sum of 9 positive 11th powers.at n=24A004820a(n) = floor(1/(1-s(n))) where s(n) = Sum_{k=1..n} phi(k)/k * log(2^k/(2^k-1)). phi(k) is the Euler totient function A000010(k).at n=17A383024