Squares whose digital rotation is also a square.

Terms

a(0) =1a(1) =121a(2) =196a(3) =529a(4) =625a(5) =961a(6) =6889a(7) =10201a(8) =69169a(9) =1002001a(10) =1022121a(11) =1212201a(12) =5221225a(13) =100020001a(14) =100220121a(15) =109181601a(16) =121022001a(17) =522808225a(18) =602555209a(19) =10000200001a(20) =10002200121a(21) =10020210201a(22) =10201202001a(23) =12100220001a(24) =62188888129