Squares whose digits are all even.

Terms

a(0) =0a(1) =4a(2) =64a(3) =400a(4) =484a(5) =4624a(6) =6084a(7) =6400a(8) =8464a(9) =26244a(10) =28224a(11) =40000a(12) =40804a(13) =48400a(14) =68644a(15) =88804a(16) =228484a(17) =242064a(18) =248004a(19) =446224a(20) =462400a(21) =608400a(22) =640000a(23) =806404a(24) =824464a(25) =846400a(26) =868624a(27) =2022084a(28) =2226064a(29) =2244004