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Search: id:A086514
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%I A086514
%S A086514 1,2,3,6,13,26,47,78,121,178,251,342,453,586,743,926,1137,1378,1651,
%T A086514 1958,2301,2682,3103,3566,4073,4626,5227,5878,6581,7338,8151,9022,9953,
%U A086514 10946,12003,13126,14317,15578,16911,18318,19801,21362,23003,24726
%N A086514 Difference between the arithmetic mean of the neighbors of the terms 
               and the term itself follows the pattern 0,1,2,3,4,5,...
%C A086514 {a(k): 1 <= k <= 4} = divisors of 6. [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), 
               Jun 17 2009]
%H A086514 R. Zumkeller, <a href="a161700.txt">Enumerations of Divisors</a> [From 
               Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jun 17 2009]
%F A086514 a(n)+ n-2 = {a(n-1) +a(n+1)}/2
%F A086514 (n^3-6n^2+14n-6)/3.
%e A086514 2 = (1+3)/2 -0. 3 = (2+6)/2 - 1, 6 = (3+13)/2 - 2, etc.
%Y A086514 A005408, A000124, A016813, A000125, A058331, A002522, A161701, A161702, 
               A161703, A000127, A161704, A161706, A161707, A161708, A161710, A080856, 
               A161711, A161712, A161713, A161715, A006261. [From Reinhard Zumkeller 
               (reinhard.zumkeller(AT)gmail.com), Jun 17 2009]
%Y A086514 Sequence in context: A155996 A018274 A018775 this_sequence A079662 A007910 
               A052702
%Y A086514 Adjacent sequences: A086511 A086512 A086513 this_sequence A086515 A086516 
               A086517
%K A086514 nonn
%O A086514 1,2
%A A086514 Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Jul 29 2003
%E A086514 More terms from David Wasserman (wasserma(AT)spawar.navy.mil), Mar 10 
               2005

    
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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.


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