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 A292431 #33 Oct 06 2017 01:55:09
%S A292431 0,6,10,12,18,20,24,30,36,40,42,48,56,60,72,84,90,108,120,144,168,180,
%T A292431 210,240,280,300,330,336,360,420,480,504,540,600,630,660,720,840,1008,
%U A292431 1080,1200,1260,1440,1560,1680,1980,2100,2160,2310,2340
%N A292431 Numbers n with record numbers of unordered triples {a, b, c} of distinct positive integers from 1 to n such that a*b = c*n.
%C A292431 Numbers n with record numbers of ordered triples {a, b, c} such that a*b = c*n with c < a < b < n.
%e A292431 There are 4 unordered triples {a, b, c} of distinct positive integers from 1 to 10 such that a*b = c*10:
%e A292431 {2, 5, 1}: 2*5 = 1*10 = 10;
%e A292431 {4, 5, 2}: 4*5 = 2*10 = 20;
%e A292431 {5, 6, 3}: 5*6 = 3*10 = 30;
%e A292431 {5, 8, 4}: 5*8 = 4*10 = 40.
%e A292431 This is more than any n < 10, so 10 is in this sequence.
%Y A292431 Where records occur in A278648.
%Y A292431 Cf. A292430.
%K A292431 nonn
%O A292431 1,2
%A A292431 _Bobby Jacobs_ and _Robert G. Wilson v_, Sep 30 2017