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 A212654 #19 Mar 12 2013 13:05:42 %S A212654 1,2,4,6,12,24,60,120,360,720,3600,5040,25200,55440,277200,720720, %T A212654 3603600,10810800,21621600,122522400,367567200,2327925600,6983776800, %U A212654 48886437600,97772875200,293318625600,3226504881600,6746328388800,74209612276800,195643523275200 %N A212654 LCM of the first few p-smooth numbers for a prime number p if in A007416; otherwise smallest number with same number of divisors (see example for details). %C A212654 What is the smallest number in this sequence divisible by 27? %e A212654 Term after 720 is 3600 because 720 is a 5-smooth number divisible by all 5-smooth numbers less than 25, and LCM of 720 and 25 is 3600.Term after 3600 is 5040 because 3600 is a 5-smooth number; divisible by all 5-smooth numbers less than 27, and LCM of 3600 and 27 is 10800, but 10800 has 60 divisors and smallest number with 60 divisors is 5040. %K A212654 nonn %O A212654 1,2 %A A212654 _J. Lowell_, Feb 14 2013