%I A058524
%S A058524 1,1,1,2,2,8,8,13,21,77,77,128,128,354,641,1232,1232,2677,2677,7220,
%T A058524 8951,25378,25378,63680,113335,323151,532358,1442702,1442702,2963955
%N A058524 Each c(i) is "multiply" (*) or "divide" (/). a(n) is number of choices 
               for c(1), ..., c(n-1) so that 1 c(1) 2 c(2) 3,.., c(n-1) n is an 
               integer.
%e A058524 For n = 4 there are 2 possibilities: 1*2*3*4=24 and 1/2*3*4=6. For n 
               = 9 there are 13 possibilities: 1*2*3*4*5*6*7*8 1/2*3*4*5*6*7*8 1/
               2/3*4*5*6*7*8 1*2/3*4*5*6*7*8 1*2*3*4*5/6*7*8 1*2*3/4*5*6*7*8 1*2/
               3/4*5*6*7*8 1/2*3*4*5/6*7*8 1/2*3/4*5*6*7*8 1/2/3/4*5*6*7*8 1*2*3*4*5*6*7/
               8 1*2/3*4*5*6*7/8 1*2*3/4*5/6*7*8.
%Y A058524 Sequence in context: A021441 A138102 A151924 this_sequence A072576 A060818 
               A082887
%Y A058524 Adjacent sequences: A058521 A058522 A058523 this_sequence A058525 A058526 
               A058527
%K A058524 nonn,easy,nice
%O A058524 1,4
%A A058524 Naohiro Nomoto (6284968128(AT)geocities.co.jp), Dec 22 2000
%E A058524 More terms from Sascha Kurz (sascha.kurz(AT)uni-bayreuth.de), Oct 14 
               2001