%I A048902
%S A048902 1,221,71065,22882613,7368130225,2372515049741,763942477886281,
%T A048902 245987105364332645,79207083984837225313,25504435056012222218045,
%U A048902 8212348880951950716985081,2644350835231472118646977941
%N A048902 Indices of heptagonal numbers (A000566) which are also hexagonal.
%H A048902 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               HeptagonalHexagonalNumber.html">Link to a section of The World of 
               Mathematics.</a>
%Y A048902 Cf. A048901, A048903.
%Y A048902 Sequence in context: A157490 A020247 A011816 this_sequence A083958 A083959 
               A078212
%Y A048902 Adjacent sequences: A048899 A048900 A048901 this_sequence A048903 A048904 
               A048905
%K A048902 nonn
%O A048902 1,2
%A A048902 Eric Weisstein (eric(AT)weisstein.com)