78915domain: NAppears in sequencesNumbers that are the sum of 5 nonzero 8th powers.at n=31A003383a(1)=1, a(n) = n*11^(n-1) + a(n-1).at n=4A0149261+2n+3n^2+4n^3+5n^4.at n=11A056579Numbers k such that Sum_{x=2..k} (x-1)*3^(x-2) = ((2*k-3)*3^(k-1)+1)/4 is prime.at n=11A125567