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 A050301 #5 Dec 19 2015 13:19:09 %S A050301 1,7,1,28,7,1,105,35,7,1,322,133,35,7,1,952,455,140,35,7,1,2541,1379, %T A050301 483,140,35,7,1,6539,3920,1512,490,140,35,7,1,15833,10375,4354,1540, %U A050301 490,140,35,7,1,37148,26243,11803,4487,1547,490,140,35,7,1,83594 %N A050301 Matrix 7th power of partition triangle A008284. %e A050301 1; 7,1; 28,7,1; 105,35,7,1; ... %Y A050301 Cf. A038497, A038498, A039805-A039807. A050300-A050304. a(n, 1) = A024207(n) (first column). %K A050301 nonn,tabl %O A050301 1,2 %A A050301 _Christian G. Bower_, Aug 15 1999