%I #4 Mar 31 2012 12:35:46
%S 2,4,8,11,19,12,22,22,10,5,13,12,21,12,11,12,24,29,60,83,56,29,61,83,
%T 56,29,29,29,62,83,171,253,164,83,83,83,146,83,83,83,173,245,497,731,
%U 488,245,497,731,731,731,731,731,1471,2189,2189,2189,1460,731,1473,2189,3659
%N Number of increasing sequences of n integers x(1),...,x(n) with values in 1..2*n such that x(j) divides x(k) iff j divides k
%C Column 2 of A180378
%H R. H. Hardin, <a href="/A180379/b180379.txt">Table of n, a(n) for n=1..99</a>
%K nonn
%O 1,1
%A _R. H. Hardin_ Sep 01 2010
