Smallest n-digit square whose external digits as well as internal digits form a square, or 0 if no such number exists.

A077363

Smallest n-digit square whose external digits as well as internal digits form a square, or 0 if no such number exists.

Terms

    a(0) =1a(1) =16a(2) =196a(3) =0a(4) =10816a(5) =132496a(6) =3013696a(7) =10010896a(8) =0a(9) =1021697296a(10) =32747969296a(11) =119013960256a(15) =0a(17) =0a(18) =0a(19) =0

External references