Numbers k such that k^2 is a palindrome with an odd number of digits.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =11a(5) =22a(6) =26a(7) =101a(8) =111a(9) =121a(10) =202a(11) =212a(12) =264a(13) =307a(14) =1001a(15) =1111a(16) =2002a(17) =2285a(18) =2636a(19) =10001a(20) =10101a(21) =10201a(22) =11011a(23) =11111a(24) =11211a(25) =20002a(26) =20102a(27) =22865a(28) =24846a(29) =30693