This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A262595 #5 Oct 22 2015 13:50:54 %S A262595 0,1,11,1000110101011,10111011010111,100011100010101, %T A262595 100010100101110011,100001010101110001001,1100000101011101100011, %U A262595 11000100011000111101101,101111101001001110111001,1000100010011101101000011,100000100100011010000010001,10001101000001010101111100101 %N A262595 Binary numbers whose square is a palindrome in binary. %H A262595 G. J. Simmons, <a href="/A002778/a002778.pdf">On palindromic squares of non-palindromic numbers</a>, J. Rec. Math., 5 (No. 1, 1972), 11-19. [Annotated scanned copy] %Y A262595 This is A003166 written in base 2. %K A262595 nonn,base %O A262595 1,3 %A A262595 _N. J. A. Sloane_, Oct 22 2015