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 A143730 #6 May 05 2021 09:56:40 %S A143730 5,7,9,9,11,11,13,13,13,15,15,15,17,17,17,17,19,19,19,19,21,21,21,21, %T A143730 21,23,23,23,23,23,25,25,25,25,25,25,27,27,27,27,27,27,29,29,29,29,29, %U A143730 29,29,31,31,31,31,31,31,31,33,33,33,33,33,33,33,33,35,35,35,35,35,35,35 %N A143730 a(n) = A141616(n) - A100181(n). %C A143730 Also A005408(n+2) with distribution 1, 1, 2, 2, 3, 3 = A008619. %C A143730 Same distribution (other definition): 1, 2, 3, 3, 4, 4 = A000267. %Y A143730 Cf. A000267, A005408, A008619, A100181, A141616. %K A143730 nonn %O A143730 1,1 %A A143730 _Paul Curtz_, Aug 30 2008