Search: id:A140677
Results 1-1 of 1 results found.

%I A140677
%S A140677 0,11,28,51,80,115,156,203,256,315,380,451,528,611,700,795,896,1003,
%T A140677 1116,1235,1360,1491,1628,1771,1920,2075,2236,2403,2576,2755,2940,3131,
%U A140677 3328,3531,3740,3955,4176,4403,4636,4875,5120,5371,5628
%N A140677 n(3n+8).
%F A140677 a(n)=3*n^2 + 8*n.
%F A140677 a(n)=6*n+a(n-1)-1 (with a(1)=0) [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), 
               Nov 08 2009]
%e A140677 For n=2, a(2)=6*2+0-1=11; n=3, a(3)=6*3+11-1=28; n=4, a(4)=6*4+28-1=51 
               [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Nov 08 2009]
%t A140677 s=0;lst={s};Do[s+=n++ +11;AppendTo[lst, s], {n, 0, 7!, 6}];lst [From 
               Vladimir Orlovsky (4vladimir(AT)gmail.com), Nov 19 2008]
%Y A140677 Cf. A033428, A045944, A140676, A067725, A140678, A067707, A140679, A140680, 
               A140681, A140689.
%Y A140677 Sequence in context: A030756 A065006 A061952 this_sequence A018944 A061086 
               A034276
%Y A140677 Adjacent sequences: A140674 A140675 A140676 this_sequence A140678 A140679 
               A140680
%K A140677 easy,nonn,new
%O A140677 0,2
%A A140677 Omar E. Pol (info(AT)polprimos.com), May 22 2008

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