Search: id:A048923
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%I A048923
%S A048923 1,459,309141,208360351,140434567209,94652689938291,63795772583840701,
%T A048923 42998256068818693959,28980760794611215887441,
%U A048923 19532989777311890689441051,13165206129147419713467380709
%N A048923 Indices of octagonal numbers which are also 9-gonal.
%H A048923 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               NonagonalOctagonalNumber.html">Link to a section of The World of 
               Mathematics.</a>
%Y A048923 Cf. A048922, A048924.
%Y A048923 Sequence in context: A055162 A055159 A124694 this_sequence A107973 A142832 
               A138956
%Y A048923 Adjacent sequences: A048920 A048921 A048922 this_sequence A048924 A048925 
               A048926
%K A048923 nonn
%O A048923 1,2
%A A048923 Eric Weisstein (eric(AT)weisstein.com)

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