Search: id:A067403
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%I A067403
%S A067403 1,5,45,405,3645,32805,295245,2657205,23914845,215233605,1937102445,
%T A067403 17433922005,156905298045,1412147682405,12709329141645,114383962274805,
%U A067403 1029455660473245,9265100944259205,83385908498332845
%N A067403 Third column of triangle A067402.
%F A067403 a(n)= A067402(n+2, 2). a(n)= 5*9^(n-1), n>=1, a(0)=1.
%F A067403 G.f.: (1-4*x)/(1-9*x).
%Y A067403 Cf. A002001 (second column), A067404 (fourth column), A001019 (powers 
               of 9).
%Y A067403 Sequence in context: A125836 A001260 A088505 this_sequence A022022 A058410 
               A005979
%Y A067403 Adjacent sequences: A067400 A067401 A067402 this_sequence A067404 A067405 
               A067406
%K A067403 nonn,easy
%O A067403 0,2
%A A067403 Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de), Jan 25 
               2002

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