%I A048910
%S A048910 1,2,18,49,529,1458,15842,43681,474721,1308962,14225778,39225169,
%T A048910 426298609,1175446098,12774732482,35224157761,382815675841,
%U A048910 1055549286722,11471695542738,31631254443889,343768050606289
%N A048910 Indices of 9-gonal numbers which are also square.
%H A048910 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               NonagonalSquareNumber.html">Link to a section of The World of Mathematics.</
               a>
%Y A048910 Cf. A048911, A036411.
%Y A048910 Sequence in context: A126909 A139268 A052681 this_sequence A077591 A050808 
               A058653
%Y A048910 Adjacent sequences: A048907 A048908 A048909 this_sequence A048911 A048912 
               A048913
%K A048910 nonn
%O A048910 1,2
%A A048910 Eric Weisstein (eric(AT)weisstein.com)