Search: id:A076726
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%I A076726
%S A076726 2,2,6,26,150,1082,9366,94586,1091670,14174522,204495126,3245265146,
%T A076726 56183135190,1053716696762,21282685940886,460566381955706,
%U A076726 10631309363962710,260741534058271802,6771069326513690646
%N A076726 a(n) = sum{k=0..inf} (k^n)/(2^k)
%F A076726 a(n) = A000670(n)*2. - DELEHAM Philippe (kolotoko(AT)wanadoo.fr), Mar 
               06 2004
%e A076726 a(0) = 2 because 1 + 1/2 + 1/4 + 1/8 + 1/16 + 1/32 + ... = 2; a(1) = 
               2 because 0 + 1/2 + 2/4 + 3/8 + 4/16 + 5/32 + ... = 2
%t A076726 f[n_] := Sum[(k^n)/(2^k), {k, 0, Infinity}]; Table[ f[n], {n, 0, 18}]
%Y A076726 Same as A000629 except for a(0).
%Y A076726 Sequence in context: A093453 A052660 A135407 this_sequence A032272 A004304 
               A108800
%Y A076726 Adjacent sequences: A076723 A076724 A076725 this_sequence A076727 A076728 
               A076729
%K A076726 nonn
%O A076726 0,1
%A A076726 Charles G. Waldman (cgw(AT)alum.mit.edu), Oct 27 2002
%E A076726 More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Oct 29 2002

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