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

A077364

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

Terms

    a(0) =9a(1) =81a(2) =841a(3) =0a(4) =38416a(5) =405769a(6) =8003241a(7) =82246761a(8) =0a(9) =1021697296a(10) =86925318561a(11) =119013960256a(15) =0a(17) =0a(18) =0a(19) =0a(22) =0

External references