Numbers k such that sum of digits of k^2 is 7.

Terms

a(0) =4a(1) =5a(2) =32a(3) =40a(4) =49a(5) =50a(6) =149a(7) =320a(8) =400a(9) =490a(10) =500a(11) =1049a(12) =1490a(13) =3200a(14) =4000a(15) =4900a(16) =5000a(17) =10490a(18) =14900a(19) =32000a(20) =40000a(21) =49000a(22) =50000a(23) =104900a(24) =149000a(25) =320000a(26) =400000a(27) =490000a(28) =500000a(29) =1049000