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 A054112 #7 May 22 2013 13:45:49 %S A054112 1,10,28,57,98,152,222,310,418,548,702,882,1090,1328,1598,1902,2242, %T A054112 2620,3038,3498,4002,4552,5150,5798,6498,7252,8062,8930,9858,10848, %U A054112 11902,13022,14210,15468,16798,18202,19682,21240 %N A054112 T(n,n-3), array T as in A054110. %F A054112 For n>6, a(n) = (n^3 - 7n)/3. - _Ralf Stephan_, Apr 03 2004 %K A054112 nonn %O A054112 3,2 %A A054112 _Clark Kimberling_