Squares which produce squares when the leading digit is moved to the end.

Terms

a(0) =1a(1) =4a(2) =9a(3) =100a(4) =144a(5) =196a(6) =400a(7) =625a(8) =900a(9) =10000a(10) =11664a(11) =14884a(12) =40000a(13) =46656a(14) =60025a(15) =90000a(16) =96100a(17) =1000000a(18) =1028196a(19) =1493284a(20) =4000000a(21) =4112784a(22) =6385729a(23) =9000000a(24) =9253764a(25) =100000000a(26) =100400400a(27) =139287204a(28) =149377284a(29) =187799616