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 A000610 M1714 N0678 #70 Apr 19 2025 18:05:53 %S A000610 0,1,2,6,42,4094,98210640,148947659711650464, %T A000610 872404773126414633407736134582136832, %U A000610 88627167739308536281147085615274891669779458770791192509009429292662497280 %N A000610 Number of self-complementary Boolean functions of n variables: see Comments for precise definition. %C A000610 Number of self-complementary equivalence classes under the group G_n (a permutation group on the domain of Boolean functions, generated by the symmetric group S_n and the group (C_2)^n of all 2^n complementations of variables). - _R. J. Mathar_, Apr 14 2010 %D A000610 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence). %D A000610 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). %H A000610 B. Elspas, <a href="/A000610/a000610.pdf">Self-complementary symmetry types of Boolean functions</a>, IEEE Transactions on Electronic Computers 2, no. EC-9 (1960): 264-266. [Annotated scanned copy] %H A000610 M. A. Harrison, <a href="http://dx.doi.org/10.1109/PGEC.1963.263656">The number of equivalence classes of Boolean functions under groups containing negation</a>, IEEE Trans. Electron. Comput. 12 (1963), 559-561. %H A000610 M. A. Harrison, <a href="/A000370/a000370.pdf">The number of equivalence classes of Boolean functions under groups containing negation</a>, IEEE Trans. Electron. Comput. 12 (1963), 559-561. [Annotated scanned copy] %H A000610 E. M. Palmer and R. W. Robinson, <a href="http://projecteuclid.org/euclid.pjm/1102711113">Enumeration of self-dual configurations</a> Pacific J. Math., 110 (1984), 203-221. %H A000610 I. Toda, <a href="https://doi.org/10.1109/TEC.1962.5219361">On the number of types of self-dual logical functions</a>, IEEE Trans. Electron. Comput., 11 (1962), 282-284. %H A000610 I. Toda, <a href="/A001531/a001531.pdf">On the number of types of self-dual logical functions</a> (annotated scanned copy) %H A000610 <a href="/index/Bo#Boolean">Index entries for sequences related to Boolean functions</a> %F A000610 a(n) = A000370(n) - A317794(n). - _Tilman Piesk_, Apr 14 2025 %o A000610 (Python) %o A000610 # Using function get_num_equiv_bool_func from A000370. %o A000610 [get_num_equiv_bool_func(n,True) for n in range(1,10)] # _Gregory Morse_, Dec 23 2024 %Y A000610 Cf. A001320, A000370, A317794. %K A000610 nonn,nice,easy %O A000610 0,3 %A A000610 _N. J. A. Sloane_ %E A000610 More terms from _Vladeta Jovovic_, Feb 23 2000 %E A000610 a(0)=0 from _Tilman Piesk_, Apr 15 2025