Terms of A227891 of the form (p*q)^2, where p <= q are odious primes (A027697).

Terms

a(0) =582169a(1) =797449a(2) =1874161a(3) =1934881a(4) =2007889a(5) =2181529a(6) =3024121a(7) =3171961a(8) =4879681a(9) =5387041a(10) =6775609a(11) =9174841a(12) =11771761a(13) =16072081a(14) =18653761a(15) =19070689a(16) =20894041a(17) =22762441a(18) =25694761a(19) =26635921a(20) =29953729a(21) =31214569a(22) =33166081a(23) =40081561a(24) =42081169a(25) =45873529a(26) =48177481a(27) =49463089a(28) =50367409