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 A050303 #5 Dec 19 2015 13:18:53 %S A050303 1,9,1,45,9,1,201,54,9,1,735,246,54,9,1,2517,981,255,54,9,1,7785,3453, %T A050303 1026,255,54,9,1,22857,11238,3699,1035,255,54,9,1,63024,33930,12183, %U A050303 3744,1035,255,54,9,1,166819,97038,37464,12429,3753,1035,255,54,9,1 %N A050303 Matrix 9th power of partition triangle A008284. %e A050303 1; 9,1; 45,9,1; 201,54,9,1; ... %Y A050303 Cf. A038497, A038498, A039805-A039807. A050300-A050304. a(n, 1) = A024209(n) (first column). %K A050303 nonn,tabl %O A050303 1,2 %A A050303 _Christian G. Bower_, Aug 15 1999