%I A121807
%S A121807 10,21,122,233,1244,2345,12346,22357,32468,43569,54680,154781,255782,
%T A121807 356793,457904,568005,679016,790117,1790128,2790239,3791240,4792351,
%U A121807 5802362,6813363,7913364,9013465,10113576,11214587,12315688,13425689
%N A121807 Partial sum of A004676.
%Y A121807 Cf. A000040, A004676.
%Y A121807 Sequence in context: A001739 A072805 A119033 this_sequence A133163 A041833 
               A153317
%Y A121807 Adjacent sequences: A121804 A121805 A121806 this_sequence A121808 A121809 
               A121810
%K A121807 base,easy,nonn
%O A121807 1,1
%A A121807 Jonathan Vos Post (jvospost3(AT)gmail.com), Sep 09 2006