Search: id:A048914
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%I A048914
%S A048914 1,21,10981,252081,132846121,3049673901,1607172358861,36894954600201,
%T A048914 19443571064652241,446355157703555781,235228321132990450741,
%U A048914 5400004661002663236321,2845792209623347408410361
%N A048914 Indices of pentagonal numbers which are also 9-gonal.
%H A048914 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               NonagonalPentagonalNumber.html">Link to a section of The World of 
               Mathematics.</a>
%Y A048914 Cf. A048913, A048915.
%Y A048914 Sequence in context: A135823 A013726 A159358 this_sequence A046183 A167063 
               A115485
%Y A048914 Adjacent sequences: A048911 A048912 A048913 this_sequence A048915 A048916 
               A048917
%K A048914 nonn
%O A048914 1,2
%A A048914 Eric Weisstein (eric(AT)weisstein.com)

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