Search: id:A129151
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%I A129151
%S A129151 81,108,216,540,1188,2484,5076,10260,23112,57996,135648,475632,1586736,
%T A129151 4760640,20409408,89259840,374899968
%N A129151 n-th arithmetic derivative of 3^4.
%C A129151 a(n) = A129285(n)*3^3; A129251(a(n)) > 0. - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), 
               Apr 07 2007
%F A129151 a(n+1) = A003415(a(n)), a(0) = 3^4 = 81.
%Y A129151 Cf. A129150, A129152, A068327.
%Y A129151 Cf. A099309, A051674, A100716.
%Y A129151 Sequence in context: A102766 A064828 A120457 this_sequence A039546 A053887 
               A119943
%Y A129151 Adjacent sequences: A129148 A129149 A129150 this_sequence A129152 A129153 
               A129154
%K A129151 nonn
%O A129151 0,1
%A A129151 Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Apr 01 2007

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