Primes of the form (10p)^2 + 1, where p is also prime.

Terms

a(0) =401a(1) =12101a(2) =16901a(3) =28901a(4) =52901a(5) =184901a(6) =220901a(7) =792101a(8) =1020101a(9) =1144901a(10) =2464901a(11) =3204101a(12) =3648101a(13) =3880901a(14) =3960101a(15) =5428901a(16) =6604901a(17) =7672901a(18) =9672101a(19) =12180101a(20) =12460901a(21) =13468901a(22) =13912901a(23) =14364101a(24) =15132101a(25) =18576101