322322domain: NAppears in sequencesLargest k > 1 such that (sum of digits of k^n)*(sum of digits of k^(n+1)) = k, or 0 if no such k exists.at n=20A130181Increase each digit in the binary representation of n by 2.at n=36A176894List of imprimitive words over the alphabet {2,3}.at n=15A213974