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 A147758 #4 Mar 30 2012 18:39:36 %S A147758 1,3,5,9,21,45,93,189,381,765,1533,3069,6141,12285,24573,49149,98301, %T A147758 196605,393213,786429,1572861,3145725,6291453,12582909,25165821, %U A147758 50331645,100663293,201326589,402653181,805306365,1610612733,3221225469 %N A147758 Numbers whose binary representation is a palindrome formed from the reflected decimal expansion of the concatenation of 1, 0 and infinite digits 1. %C A147758 a(n) is the number whose binary representation is A147757(n). %Y A147758 Cf. A068156, A147757. %K A147758 base,easy,nonn %O A147758 1,2 %A A147758 _Omar E. Pol_, Nov 11 2008 %E A147758 More terms from _Sean A. Irvine_, Nov 26 2009