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 A093919 #11 Jul 25 2015 01:17:03
%S A093919 1,2,2,3,6,6,4,12,12,12,5,20,60,60,60,6,30,60,60,60,60,7,42,210,420,
%T A093919 420,420,420,8,56,168,840,840,840,840,840,9,72,504,504,2520,2520,2520,
%U A093919 2520,2520,10,90,360,2520,2520,2520,2520,2520,2520,2520,11,110,990,3960
%N A093919 Consider the triangle in A004736, the k-th term of the n-th row is the LCM of the preceding k terms.
%H A093919 Enrique Pérez Herrero, <a href="/A093919/b093919.txt">Rows n=1..100 of triangle, flattened</a>.
%e A093919 T(5,3) = 60 because the fifth row of A004736 has the terms {5 4 3 2 1 }, the first three terms being 5, 4 & 3 which have an LCM of 60.
%e A093919 Triangle begins:
%e A093919 1
%e A093919 2 2
%e A093919 3 6 6
%e A093919 4 12 12 12
%e A093919 5 20 60 60 60
%e A093919 6 30 60 60 60 60
%e A093919 7 42 210 420 420 420 420
%e A093919 8 56 168 840 840 840 840 840
%t A093919 T[n_, k_] := LCM @@ Drop[Reverse[Range[n]], (k - n)]; Flatten[ Table[ T[n, k], {n, 11}, {k, n}]] (* _Robert G. Wilson v_, Apr 27 2004 *)
%Y A093919 Cf. A004736, A093920, A179661.
%K A093919 nonn,tabl
%O A093919 1,2
%A A093919 _Amarnath Murthy_, Apr 25 2004
%E A093919 Edited by _Robert G. Wilson v_, Apr 27 2004