Search: id:A015225
Results 1-1 of 1 results found.

%I A015225
%S A015225 1,7,95,161,525,715,1547,1925,3417,4047,6391,7337,10725,12051,16675,
%T A015225 18445,24497,26775,34447,37297,46781,50267,61755,65941,79625,84575,
%U A015225 100647,106425,125077,131747,153171,160797,185185,193831,221375,231105
%N A015225 Odd hexagonal pyramidal numbers.
%F A015225 Odd numbers of the form n(n+1)(4n-1)/6
%Y A015225 Sequence in context: A134113 A071584 A132114 this_sequence A036337 A130183 
               A156961
%Y A015225 Adjacent sequences: A015222 A015223 A015224 this_sequence A015226 A015227 
               A015228
%K A015225 nonn
%O A015225 1,2
%A A015225 Mohammad K. Azarian (ma3(AT)evansville.edu)
%E A015225 More terms from Erich Friedman (erich.friedman(AT)stetson.edu).

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