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 A051061 #9 Aug 24 2021 07:52:50 %S A051061 0,0,0,0,0,0,0,0,1,1,1,2,3,4,7,9,12,17,23,30,40,51,66,85,108,136,173, %T A051061 215,268,331,406,498,612,742,900,1088,1311,1573,1889,2252,2682,3187, %U A051061 3779,4467,5277,6206,7294,8554,10015,11695,13649,15884,18467,21429,24834 %N A051061 a(n) = A048141(3*n). %Y A051061 Cf. A048141. %K A051061 nonn %O A051061 1,12 %A A051061 _Wouter Meeussen_ %E A051061 More terms and simplified name from _Sean A. Irvine_, Aug 24 2021