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 A234752 #12 Feb 20 2014 05:26:01 %S A234752 6,18,20,21,106,107,108,120,121,126,127,258,259,260,261,272,273,278, %T A234752 279,360,366,367,378,380,381,1546,1547,1548,1549,1560,1561,1566,1567, %U A234752 1632,1633,1638,1639,1650,1651,1652,1653,1800,1801,1806,1818,1819,1820,1890,1892,1893,1904,1905,1910,1911 %N A234752 Binary encodings of reducible polynomials over GF(2)that are fixed by blue code: a(n) = A091242(A234749(n)). %C A234752 Irreducible polynomials over GF(2) (A014580) fixed by blue code (A193231) seem to be much rarer. The first 22 cases are: 7, 19, 109, 361, 379, 1807, 1821, 1891, 4645, 4663, 4897, 4915, 4941, 27327, 27329, 27589, 27607, 27829, 27851, 28067, 28081, 28125. %H A234752 Antti Karttunen, <a href="/A234752/b234752.txt">Table of n, a(n) for n = 1..232</a> %F A234752 a(n) = A091242(A234749(n)). %o A234752 (Scheme) (define (A234752 n) (A091242 (A234749 n))) %Y A234752 Intersection of A091242 and A118666. %Y A234752 Cf. A193231, A234745, A234746, A234749. %K A234752 nonn %O A234752 1,1 %A A234752 _Antti Karttunen_, Feb 15 2014