Semiprimes of the form k^2 + 3.

Terms

a(0) =4a(1) =39a(2) =259a(3) =327a(4) =403a(5) =579a(6) =679a(7) =1027a(8) =1159a(9) =1299a(10) =1603a(11) =1939a(12) =2119a(13) =2307a(14) =3139a(15) =3603a(16) =4359a(17) =4627a(18) =6087a(19) =6403a(20) =7747a(21) =9607a(22) =10003a(23) =10407a(24) =10819a(25) =11667a(26) =13459a(27) =13927a(28) =14403a(29) =16387