Numbers k such that k and k+1 have at least 5 but not both exactly 5 distinct prime factors.

Terms

a(0) =728364a(1) =1565564a(2) =1774409a(3) =1817529a(4) =1923635a(5) =2162094a(6) =2187185a(7) =2199834a(8) =2225894a(9) =2369850a(10) =2557190a(11) =2594514a(12) =2659734a(13) =2671305a(14) =2794154a(15) =2944689a(16) =2964884a(17) =3126045a(18) =3139730a(19) =3170244a(20) =3244955a(21) =3273809a(22) =3279639a(23) =3382379a(24) =3387054a(25) =3506810a(26) =3555110a(27) =3585945a(28) =3686969a(29) =3711630