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 A083507 #8 Aug 25 2014 11:58:05 %S A083507 6,6,8,12,24,6,8,10,12,15,20,24,30,40,60,6,8,10,12,15,18,20,24,30,36, %T A083507 40,48,60,72,90,120,6,8,10,12,14,15,18,20,21,24,28,30,35,36,40,42,48, %U A083507 56,60,70,72,84,90,105,120,126,140,168,210,6,8,10,12,14,15,16,18,20,21,24,28 %N A083507 n-th row of the following triangle contains all distinct numbers that can be obtained as the product of three distinct numbers chosen from 1 to n (for n>2). Sequence contains the triangle read by rows. %D A083507 Amarnath Murthy, Generalization of partition function introducing Smarandache Factor Partitions, Smarandache Notions Journal, 1-2-3, Vol. 11, 2000. %e A083507 6 %e A083507 6,8,12,24 %e A083507 6,8,10,12,15,20,24,30,40,60 %e A083507 6,8,10,12,15,18,20,24,30,36,40,48,60,72,90 %e A083507 ... %Y A083507 Numbers of terms in rows are given by A027430. %K A083507 nonn,tabf %O A083507 3,1 %A A083507 _Amarnath Murthy_ and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 05 2003 %E A083507 More terms from _David Wasserman_, Nov 18 2004