Primes p such that p and p^2 have same digit sum.

Terms

a(0) =19a(1) =199a(2) =379a(3) =739a(4) =1747a(5) =1999a(6) =3169a(7) =3259a(8) =4519a(9) =4789a(10) =4951a(11) =5689a(12) =5851a(13) =5869a(14) =6481a(15) =6679a(16) =7489a(17) =8389a(18) =9199a(19) =10729a(20) =12799a(21) =12889a(22) =13789a(23) =14149a(24) =14851a(25) =14869a(26) =15679a(27) =17389a(28) =17497a(29) =17659