307146domain: NAppears in sequencesNumbers m such that N = (am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,55.at n=28A0656965-Sondow numbers: numbers k such that p^s divides k/p + 5 for every prime power divisor p^s of k.at n=6A346553