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 A053040 #11 May 17 2019 09:56:05 %S A053040 1,2,4,12,137,102521,5067156572650,507566352736797478112105408650, %T A053040 545815719374972260690482400458116738905180797374198467059067284838 %N A053040 Number of self-complementary types of Boolean functions of n variables under action of affine self-dual group M(n,2). %D A053040 V. Jovovic, The cycle index polynomials of some classical groups, Belgrade, 1995, unpublished. %H A053040 I. Strazdins, <a href="https://doi.org/10.1023/A:1005769927571">Universal affine classification of Boolean functions</a>, Acta Applic. Math. 46 (1997), 147-167. %H A053040 <a href="/index/Bo#Boolean">Index entries for sequences related to Boolean functions</a> %Y A053040 Cf. A028405. %K A053040 nonn %O A053040 1,2 %A A053040 _Vladeta Jovovic_, Feb 24 2000