Search: id:A067412
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%I A067412
%S A067412 1,5,40,320,2560,20480,163840,1310720,10485760,83886080,671088640,
%T A067412 5368709120,42949672960,343597383680,2748779069440,21990232555520,
%U A067412 175921860444160,1407374883553280,11258999068426240
%N A067412 Fourth column of triangle A067410.
%C A067412 The fifth column gives [1,6,60,600,6000,60000,...].
%C A067412 a(n+1) = A157176(A016957(n)). [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), 
               Feb 24 2009]
%F A067412 a(n)= A067410(n+3, 3). a(n)= 5*8^(n-1), n>=1, a(0)=1.
%F A067412 G.f.: (1-3*x)/(1-8*x).
%F A067412 E.g.f. : (5exp(8x)+3)/8=exp(4x)(cosh(4x)+sinh(4x)/4) - Paul Barry (pbarry(AT)wit.ie), 
               Nov 20 2003
%Y A067412 Cf. A067411 (third column), A067413 (sixth column), A001018 (powers of 
               8).
%Y A067412 Sequence in context: A073505 A145841 A123943 this_sequence A078846 A027259 
               A007036
%Y A067412 Adjacent sequences: A067409 A067410 A067411 this_sequence A067413 A067414 
               A067415
%K A067412 nonn,easy
%O A067412 0,2
%A A067412 Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de), Jan 25 
               2002

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