Talk:Sub-unit squares: Difference between revisions

I am going to start by solving a relaxation of the task description. For ana z digit number find perfect squares (g*g) ending in 5 such that (g*g)+10^z/9 is also a perfect square. g will be the sequence of integers between ⌈√10^z⌉ and ⌊√10^z+1-1-10^z/9⌋ ending in 5. For 4 digit numbers the candidates (g) are 25 35 45 55 65 75 85;