%I A015223
%S A015223 1,75,405,1183,2601,4851,8125,12615,18513,26011,35301,46575,60025,
%T A015223 75843,94221,115351,139425,166635,197173,231231,269001,310675,356445,
%U A015223 406503,461041,520251,584325,653455,727833,807651,893101,984375
%N A015223 Odd pentagonal pyramidal numbers.
%H A015223 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               PentagonalPyramidalNumber.html">Pentagonal Pyramidal Number</a>
%Y A015223 Cf. A002411, A014799, A015224, A014800.
%Y A015223 Sequence in context: A158742 A158765 A055561 this_sequence A129625 A133382 
               A017791
%Y A015223 Adjacent sequences: A015220 A015221 A015222 this_sequence A015224 A015225 
               A015226
%K A015223 nonn,easy
%O A015223 0,2
%A A015223 Mohammad K. Azarian (ma3(AT)evansville.edu)
%E A015223 More terms from Erich Friedman (erich.friedman(AT)stetson.edu).