Values of m such that N=(am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,5.

Terms

a(0) =6a(1) =36a(2) =306a(3) =366a(4) =546a(5) =726a(6) =966a(7) =1296a(8) =2556a(9) =3066a(10) =3696a(11) =3876a(12) =4506a(13) =6036a(14) =6216a(15) =7686a(16) =9126a(17) =9276a(18) =9906a(19) =10596a(20) =10656a(21) =10836a(22) =11286a(23) =12516a(24) =13146a(25) =14196a(26) =14406a(27) =14736a(28) =16266a(29) =17106