380713domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(1)=1, a(n) = n*6^(n-1) + a(n-1).at n=6A014918a(n) = 1 + 2*n + 3*n^2 + 4*n^3 + 5*n^4 + 6*n^5 + 7*n^6.at n=6A113532a(n) = Sum_{i=0..n} (i+1)*n^i.at n=6A189001Prime numbersat n=32351