Search: id:A143838
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%I A143838
%S A143838 1,22,75,160,277,426,607,820,1065,1342,1651,1992,2365,2770,3207,3676,
%T A143838 4177,4710,5275,5872,6501,7162,7855,8580,9337,10126,10947,11800,12685,
%U A143838 13602,14551,15532,16545,17590,18667,19776,20917,22090,23295,24532
%N A143838 Ulam/Prime spiral (SSW).
%F A143838 a(n)= 16n^2-27n+12, n>0. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), 
               Sep 04 2008]
%t A143838 lst={1};a=3;Do[AppendTo[lst,n*n-a];a=a+3,{n,5,6!,4}];lst
%Y A143838 Sequence in context: A044160 A044541 A080861 this_sequence A003908 A075252 
               A094844
%Y A143838 Adjacent sequences: A143835 A143836 A143837 this_sequence A143839 A143840 
               A143841
%K A143838 nonn
%O A143838 1,2
%A A143838 Vladimir Orlovsky (4vladimir(AT)gmail.com), Sep 02 2008

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