Squares with an even number of digits, where the first half is a square and the second half is a nonzero square.
A145848
Squares with an even number of digits, where the first half is a square and the second half is a nonzero square.
Terms
- a(0) =49a(1) =1681a(2) =144400a(3) =225625a(4) =256036a(5) =324900a(6) =576081a(7) =24019801a(8) =1299602500a(9) =1587624025a(10) =2371690000a(11) =2496401296a(12) =2528178961a(13) =2924105625a(14) =3132976729a(15) =5198410000a(16) =5616902916a(17) =6350496100a(18) =8122515625a(19) =9985605184a(20) =249001998001
External references
- oeis: A145848