Numbers k such that k, k+1 and k+2 all have the same number of distinct prime divisors.

Terms

a(0) =2a(1) =3a(2) =7a(3) =20a(4) =33a(5) =34a(6) =38a(7) =44a(8) =50a(9) =54a(10) =55a(11) =56a(12) =74a(13) =75a(14) =85a(15) =86a(16) =91a(17) =92a(18) =93a(19) =94a(20) =98a(21) =115a(22) =116a(23) =117a(24) =122a(25) =133a(26) =134a(27) =141a(28) =142a(29) =143