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 A070293 #14 Oct 07 2023 05:06:23
%S A070293 30,15,10,30,6,5,210,60,30,3,330,10,390,105,2,120,510,15,570,6,70,165,
%T A070293 690,20,30,195,90,210,870,1,930,240,110,255,42,30,1110,285,130,12,
%U A070293 1230,35,1290,330,6,345,1410,40,1470,15
%N A070293 a(n) = lcm(30,n)/gcd(30,n).
%F A070293 Sum_{k=1..n} a(k) ~ (1919/360)*n^2. - _Amiram Eldar_, Oct 07 2023
%t A070293 Table[LCM[30,n]/GCD[30,n],{n,50}] (* _Harvey P. Dale_, Apr 17 2011 *)
%Y A070293 Cf. A130724, A188134, A283442, A283443, A070290, A070291, A070292.
%K A070293 easy,nonn
%O A070293 1,1
%A A070293 _Amarnath Murthy_, May 10 2002
%E A070293 More terms from _Harvey P. Dale_, Apr 17 2011