%I A025488
%S A025488 1,2,3,5,7,10,14,18,25,32,40,51,63,80,98,119,145,173,207,248,292,346,404,
%T A025488 473,552,639,742,855,984,1129,1289,1477,1681,1912,2170,2452,2771,3121,
%U A025488 3514,3951,4426,4955,5536,6182,6898,7674,8535,9470,10500,11633,12869
%N A025488 Distinct prime signatures of integers in range 1 <= k <= 2^n.
%Y A025488 A025487(a(n))=2^n.
%Y A025488 Sequence in context: A167050 A019529 A130053 this_sequence A088585 A008581 
               A036469
%Y A025488 Adjacent sequences: A025485 A025486 A025487 this_sequence A025489 A025490 
               A025491
%K A025488 nonn
%O A025488 0,2
%A A025488 David W. Wilson (davidwwilson(AT)comcast.net)