255960domain: NAppears in sequencesNumbers that have exactly nine prime factors counted with multiplicity (A046312) whose digit reversal is different and also has 9 prime factors (with multiplicity).at n=27A109029a(n) = 8000*n - 40.at n=31A157660Number of 3 X 3 magilatin squares with positive values < n.at n=15A173548