Numbers k such that k, k+2, k+4 are of the form p^2*q where p and q are distinct primes.

Terms

a(0) =2523a(1) =2525a(2) =3175a(3) =22021a(4) =25529a(5) =28223a(6) =40325a(7) =53573a(8) =58923a(9) =73447a(10) =122571a(11) =132021a(12) =149675a(13) =152339a(14) =165175a(15) =172917a(16) =202221a(17) =209673a(18) =235825a(19) =267773a(20) =268223a(21) =308671a(22) =322223a(23) =371075a(24) =425723a(25) =430171a(26) =445923a(27) =488975a(28) =575973a(29) =591575