%I A015224
%S A015224 0,6,18,40,126,196,288,550,726,936,1470,1800,2176,3078,3610,4200,5566,
%T A015224 6348,7200,9126,10206,11368,13950,15376,16896,20230,22050,23976,28158,
%U A015224 30420,32800,37926,40678,43560,49726,53016,56448,63750,67626,71656
%N A015224 Even pentagonal pyramidal numbers.
%H A015224 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               PentagonalPyramidalNumber.html">Pentagonal Pyramidal Number</a>
%Y A015224 Cf. A002411, A014800, A015223, A014799.
%Y A015224 Sequence in context: A002411 A023658 A059834 this_sequence A163983 A023620 
               A074837
%Y A015224 Adjacent sequences: A015221 A015222 A015223 this_sequence A015225 A015226 
               A015227
%K A015224 nonn,easy
%O A015224 0,2
%A A015224 Mohammad K. Azarian (ma3(AT)evansville.edu)
%E A015224 More terms from Patrick De Geest (pdg(AT)worldofnumbers.com), 7/99.