Numbers k such that the digits of k^2, reversed, include the digits of k as a substring.

Terms

a(0) =1a(1) =5a(2) =6a(3) =27a(4) =74a(5) =963a(6) =5723a(7) =6142a(8) =6524a(9) =9867a(10) =53152a(11) =65766a(12) =69714a(13) =351732a(14) =409761a(15) =497674a(16) =624279a(17) =664902a(18) =697140a(19) =781101a(20) =2733747a(21) =3879405a(22) =4897317a(23) =5031485a(24) =6317056a(25) =6971400a(26) =8403702a(27) =9324454a(28) =16013465a(29) =21646858