Perfect squares whose pattern of identical digits is unique among the squares.

Terms

a(0) =1444a(1) =7744a(2) =14884a(3) =19881a(4) =29929a(5) =37636a(6) =40401a(7) =44944a(8) =46656a(9) =55696a(10) =66564a(11) =69696a(12) =116964a(13) =133225a(14) =136161a(15) =144400a(16) =166464a(17) =190969a(18) =202500a(19) =219961a(20) =224676a(21) =225625a(22) =261121a(23) =276676a(24) =277729a(25) =300304a(26) =339889a(27) =407044a(28) =438244a(29) =473344