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 A100144 #6 Aug 28 2013 04:46:02 %S A100144 1,2,2,4,4,4,4,6,6,6,6,6,6,10,10,10,10,10,10,10,10,10,10,14,14,14,14, %T A100144 14,14,14,14,14,14,14,14,14,14,18,18,18,18,18,18,18,18,18,18,18,18,18, %U A100144 18,18,18,18,18,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22 %N A100144 First differences of A100143. %C A100144 Each term a(n) occurs a(n) times consecutively. If duplicate terms are removed, this sequence is equivalent to A100143. %C A100144 The position where values change, but also the second partial sums are in A100250. - _Ralf Stephan_, Aug 28 2013 %Y A100144 Cf. A100143, A005041. %K A100144 nonn %O A100144 1,2 %A A100144 _Rick L. Shepherd_, Nov 09 2004