Search: id:A118277
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%I A118277
%S A118277 0,1,6,9,19,24,39,46,66,75,100,111,141,154,189,204,244,261,306,325,375,
%T A118277 396,451,474,534,559,624,651,721,750,825,856,936,969,1054,1089,1179,
%U A118277 1216,1311,1350,1450,1491,1596,1639,1749,1794,1909,1956,2076,2125,2250
%N A118277 Generalized 9-gonal numbers.
%F A118277 n(7n-5)/2 for positive and negative n
%t A118277 n=9; Union[Table[i((n-2)i-(n-4))/2, {i,-30,30}]]
%Y A118277 Cf. A001106 (9-gonal numbers).
%Y A118277 Sequence in context: A086955 A078415 A023041 this_sequence A103186 A011988 
               A161782
%Y A118277 Adjacent sequences: A118274 A118275 A118276 this_sequence A118278 A118279 
               A118280
%K A118277 nonn
%O A118277 0,3
%A A118277 T. D. Noe (noe(AT)sspectra.com), Apr 21 2006

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