Squares whose external digits form a square and whose internal digits form a prime.

Terms

a(0) =225a(1) =1296a(2) =2025a(3) =3136a(4) =15876a(5) =30976a(6) =112896a(7) =125316a(8) =181476a(9) =306916a(10) =343396a(11) =355216a(12) =364816a(13) =376996a(14) =391876a(15) =1028196a(16) =1179396a(17) =1218816a(18) =1527696a(19) =1572516a(20) =1679616a(21) =1838736a(22) =3041536a(23) =3083536a(24) =3189796a(25) =3290596a(26) =3334276a(27) =3407716a(28) =3701776