Product of twin primes of form (4*k+3,4*(k+1)+1), k>=0.

Terms

a(0) =15a(1) =143a(2) =3599a(3) =5183a(4) =11663a(5) =32399a(6) =36863a(7) =51983a(8) =57599a(9) =97343a(10) =121103a(11) =176399a(12) =186623a(13) =359999a(14) =435599a(15) =685583a(16) =1040399a(17) =1065023a(18) =1192463a(19) =1327103a(20) =1742399a(21) =2039183a(22) =2108303a(23) =2214143a(24) =2585663a(25) =2624399a(26) =2782223