Search: id:A048900
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%I A048900
%S A048900 1,4347,16701685,64167869935,246532939589097,947179489733441251,
%T A048900 3639063353022941697757,13981280455134652269341655,
%U A048900 53716075869563980995868941265,206377149509584359851476202998987
%N A048900 Heptagonal pentagonal numbers.
%H A048900 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               HeptagonalPentagonalNumber.html">Link to a section of The World of 
               Mathematics.</a>
%Y A048900 Cf. A046198, A046199.
%Y A048900 Sequence in context: A028384 A107542 A145916 this_sequence A068292 A154084 
               A031654
%Y A048900 Adjacent sequences: A048897 A048898 A048899 this_sequence A048901 A048902 
               A048903
%K A048900 nonn,easy
%O A048900 1,2
%A A048900 Eric Weisstein (eric(AT)weisstein.com)

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