Nonpalindromic positive integers k such that the absolute value of k^2 - reverse(k)^2 is a square.

Terms

a(0) =56a(1) =65a(2) =5265a(3) =5625a(4) =5656a(5) =6565a(6) =12705a(7) =44370a(8) =50721a(9) =51557a(10) =55517a(11) =56056a(12) =59248a(13) =65065a(14) =71555a(15) =75515a(16) =84295a(17) =139755a(18) =273728a(19) =360145a(20) =481610a(21) =523908a(22) =541063a(23) =557931a(24) =560056a(25) =560439a(26) =565656a(27) =606056a(28) =621770a(29) =650065