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 A076863 #5 Apr 26 2017 11:02:28
%S A076863 1,2,6,34,285,3171,44023,732740,14220153,315233605,7857947691,
%T A076863 217541911830,6621714803509,219780508232663,7899055867765455,
%U A076863 305601002241052936,12662255840668015089,559390257977596068105,26246546675302419239635,1303417502979112415328410
%N A076863 n^(n-2)+(n*(n-1)/2)*(n-1)^(n-3).
%C A076863 For n > 4, number of maximal independent generating sets for S_n. Compare A078103.
%D A076863 P. J. Cameron and P. Cara, Independent generating sets and geometries for symmetric groups, J. Algebra, Vol. 258, no. 2 (2002), 641-650.
%t A076863 Join[{1},Table[n^(n-2)+(n(n-1))/2 (n-1)^(n-3),{n,2,20}]] (* _Harvey P. Dale_, Apr 26 2017 *)
%Y A076863 A000272 + A052182.
%K A076863 nonn
%O A076863 1,2
%A A076863 _N. J. A. Sloane_, Nov 23 2002