Centered square numbers which are semiprime.

Terms

a(0) =25a(1) =85a(2) =145a(3) =221a(4) =265a(5) =365a(6) =481a(7) =545a(8) =685a(9) =841a(10) =1405a(11) =1513a(12) =1985a(13) =2245a(14) =2813a(15) =2965a(16) =3281a(17) =3785a(18) =3961a(19) =4141a(20) =4705a(21) =5305a(22) =5513a(23) =5941a(24) =6161a(25) =6385a(26) =6613a(27) =7081a(28) =7813a(29) =8065