Squares with digits in nondecreasing order.

Terms

a(0) =0a(1) =1a(2) =4a(3) =9a(4) =16a(5) =25a(6) =36a(7) =49a(8) =144a(9) =169a(10) =225a(11) =256a(12) =289a(13) =1156a(14) =1225a(15) =1369a(16) =1444a(17) =4489a(18) =6889a(19) =11236a(20) =11449a(21) =13456a(22) =13689a(23) =27889a(24) =33489a(25) =111556a(26) =112225a(27) =113569a(28) =134689a(29) =146689