323839domain: NAppears in sequencesSemiprime centered cube numbers: m^3 + (m+1)^3.at n=13A180082a(n) = 1 + 2*n^2 + 3*n^3 + 4*n^4 + 5*n^5.at n=9A209263a(n) = 16*n^3 - 36*n^2 + 30*n - 9.at n=27A341043