Squares such that each digit is a square and the sum of the digits is a square.

Terms

a(0) =0a(1) =1a(2) =4a(3) =9a(4) =100a(5) =144a(6) =400a(7) =441a(8) =900a(9) =10000a(10) =10404a(11) =14400a(12) =40000a(13) =40401a(14) =44100a(15) =44944a(16) =90000a(17) =1000000a(18) =1004004a(19) =1040400a(20) =1440000a(21) =4000000a(22) =4004001a(23) =4040100a(24) =4410000a(25) =4494400a(26) =9000000a(27) =9941409a(28) =11909401a(29) =100000000