Search: id:A100188
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%I A100188
%S A100188 1,6,27,84,205,426,791,1352,2169,3310,4851,6876,9477,12754,16815,21776,
%T A100188 27761,34902,43339,53220,64701,77946,93127,110424,130025,152126,176931,
%U A100188 204652,235509,269730,307551,349216
%N A100188 Polar structured meta-anti-diamond numbers, the n-th number from a polar 
               structured n-gonal anti-diamond number sequence.
%F A100188 a(n)=(1/6)*(2*n^4-2*n^2+6*n)
%e A100188 There are no 1- or 2-gonal anti-diamonds, so 1 and (2n+2) are the first 
               and second terms since all the sequences begin as such.
%Y A100188 Cf. A000578, A000447, A004466, A007588, A063521, A062523 - "polar" structured 
               anti-diamonds; A100189 - "equatorial" structured meta-anti-diamond 
               numbers; A006484 for other structured meta numbers; and A100145 for 
               more on structured numbers.
%Y A100188 Sequence in context: A136105 A027313 A124089 this_sequence A131985 A125196 
               A100189
%Y A100188 Adjacent sequences: A100185 A100186 A100187 this_sequence A100189 A100190 
               A100191
%K A100188 easy,nonn
%O A100188 1,2
%A A100188 James A. Record (james.record(AT)gmail.com). Nov 07, 2004.

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