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 A000847 M3572 N1448 #17 Feb 02 2022 00:06:01 %S A000847 4,20,264,80104,464655217384,4220043418839499735652372200, %T A000847 176673930781452287254786178869471177643231519559311590043612856 %N A000847 Number of n-input 2-output switching networks under action of GL(n,2) on the inputs and complementing group C(2,2) on the outputs. %D A000847 M. A. Harrison, On the number of classes of switching networks, J. Franklin Instit., 276 (1963), 313-327. %D A000847 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence). %D A000847 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). %H A000847 <a href="/index/Sw#switching">Index entries for sequences related to switching networks</a> %Y A000847 Cf. A000848. %K A000847 nonn %O A000847 1,1 %A A000847 _N. J. A. Sloane_ %E A000847 More terms from _Vladeta Jovovic_, Feb 26 2000