Squares whose largest digit is 7.

Terms

a(0) =576a(1) =676a(2) =1764a(3) =2704a(4) =3721a(5) =4761a(6) =5476a(7) =5776a(8) =6724a(9) =7056a(10) =7225a(11) =7744a(12) =15376a(13) =17161a(14) =17424a(15) =20736a(16) =23716a(17) =27225a(18) =27556a(19) =30276a(20) =32761a(21) =35721a(22) =37636a(23) =47524a(24) =50176a(25) =51076a(26) =54756a(27) =57121a(28) =57600a(29) =67600