%I A001307
%S A001307 1,2,4,6,10,14,20,26,35,44,57,70,88,106,130,154,185,216,
%T A001307 255,294,344,394,456,518,595,672,765,858,970,1082,1216,
%U A001307 1350,1509,1668,1855,2042,2260,2478,2730,2982,3274,3566
%N A001307 Expansion of 1/(1-x)^2/(1-x^2)/(1-x^4)/(1-x^10)/(1-x^20).
%H A001307 INRIA Algorithms Project, <a href="http://algo.inria.fr/bin/encyclopedia?Search=ECSnb&argsearch=200">
               Encyclopedia of Combinatorial Structures 200</a>
%p A001307 1/(1-x)^2/(1-x^2)/(1-x^4)/(1-x^10)/(1-x^20)
%Y A001307 Sequence in context: A071425 A115065 A008804 this_sequence A088932 A088954 
               A000123
%Y A001307 Adjacent sequences: A001304 A001305 A001306 this_sequence A001308 A001309 
               A001310
%K A001307 nonn
%O A001307 0,2
%A A001307 N. J. A. Sloane (njas(AT)research.att.com).