Squares with strictly increasing digits.

Terms

a(0) =0a(1) =1a(2) =4a(3) =9a(4) =16a(5) =25a(6) =36a(7) =49a(8) =169a(9) =256a(10) =289a(11) =1369a(12) =13456a(13) =13689a(14) =134689