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 A247055 #10 Jan 24 2019 15:44:05 %S A247055 1,1,3,12,73,580,5601,63994,844929,12647016,211616785 %N A247055 Number of endofunctions on [n] that are the 8th power of an endofunction. %e A247055 a(3) = 12: (1,1,1), (1,1,3), (1,2,1), (1,2,2), (1,2,3), (1,3,3), (2,2,2), (2,2,3), (2,3,1), (3,1,2), (3,2,3), (3,3,3). %Y A247055 Column k=8 of A247026. %K A247055 nonn,more %O A247055 0,3 %A A247055 _Alois P. Heinz_, Sep 10 2014 %E A247055 a(8)-a(10) from _Bert Dobbelaere_, Jan 24 2019