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 A241083 #20 Apr 27 2017 19:34:54
%S A241083 1,2,3,4,10,6,14,8,9,30,33,12,39,42,15,16,68,36,76,20,84,44,92,24,25,
%T A241083 130,135,140,145,30,155,160,165,170,35,36,222,114,78,120,246,42,258,
%U A241083 132,90,138,282,48,49,350,357,364,371,378,385,56,399,406,413,420
%N A241083 LCM of n and largest integer <= sqrt(n).
%C A241083 a(n) = n iff n is in A006446. - _Ivan Neretin_, Apr 27 2017
%H A241083 Ivan Neretin, <a href="/A241083/b241083.txt">Table of n, a(n) for n = 1..10000</a>
%F A241083 a(n) = lcm(n, floor(sqrt(n))) = lcm(n, A000196(n)). - _Wesley Ivan Hurt_, Apr 15 2014
%e A241083 a(18) cannot be 18 because 18 is not a multiple of 4, the largest integer <= sqrt(18).
%p A241083 A241083:= n-> ilcm(n,floor(sqrt(n))): seq(A241083(n), n=1..50); # _Wesley Ivan Hurt_, Apr 15 2014
%t A241083 Table[LCM[n, Floor[Sqrt[n]]], {n, 50}] (* _Wesley Ivan Hurt_, Apr 15 2014 *)
%Y A241083 A179204 is a sequence that can be defined in terms of this sequence.
%Y A241083 Cf. A000196.
%K A241083 nonn,look,easy
%O A241083 1,2
%A A241083 _J. Lowell_, Apr 15 2014
%E A241083 Extended by _Wesley Ivan Hurt_, Apr 15 2014