Numbers p^2*q, p > q odd primes such that q does not divide p-1, and q does not divide p+1.

Terms

a(0) =245a(1) =845a(2) =847a(3) =1445a(4) =1859a(5) =2023a(6) =2527a(7) =2645a(8) =3179a(9) =3703a(10) =3757a(11) =3971a(12) =4693a(13) =6137a(14) =6727a(15) =6845a(16) =6877a(17) =8993a(18) =9245a(19) =9251a(20) =9583a(21) =10051a(22) =10571a(23) =10933a(24) =11045a(25) =12493a(26) =14045a(27) =14297a(28) =15059a(29) =15463