Carmichael numbers whose prime factors form an arithmetic progression.

Terms

a(0) =1729a(1) =2465a(2) =29341a(3) =294409a(4) =1152271a(5) =1857241a(6) =6189121a(7) =19384289a(8) =56052361a(9) =64377991a(10) =118901521a(11) =172947529a(12) =216821881a(13) =228842209a(14) =625482001a(15) =775368901a(16) =1213619761a(17) =1299963601a(18) =2301745249a(19) =4562359201a(20) =8346731851a(21) =9293756581a(22) =9624742921a(23) =9701285761a(24) =11346205609a(25) =13079177569a(26) =13946829751a(27) =14386156093