Search: id:A100186
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%I A100186
%S A100186 1,16,67,176,365,656,1071,1632,2361,3280,4411,5776,7397,9296,11495,
%T A100186 14016,16881,20112,23731,27760,32221,37136,42527,48416,54825,61776,
%U A100186 69291,77392,86101,95440,105431,116096
%N A100186 Structured heptagonal anti-diamond numbers (vertex structure 7).
%F A100186 a(n)=(1/6)*(22*n^3-24*n^2+8*n)
%Y A100186 Cf. A063521 = alternate vertex; A100188 = structured anti-diamonds; A100145 
               for more on structured numbers.
%Y A100186 Sequence in context: A043153 A039330 A043933 this_sequence A005906 A036660 
               A063493
%Y A100186 Adjacent sequences: A100183 A100184 A100185 this_sequence A100187 A100188 
               A100189
%K A100186 easy,nonn
%O A100186 1,2
%A A100186 James A. Record (james.record(AT)gmail.com). Nov 07, 2004.

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