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A166066 a(n)=(Concatenation of A166064(1..n))/(Sum of A166064(1..n)). 1

%I #3 Mar 30 2012 17:26:30

%S 1,10,34,114,604,38030,5432858,1686059380,1311379517778,

%T 809149064160894,457784289977786218,1525947633259287393334,

%U 12047520385077724826639078,349766720857095236902424845162,18224272090946071153017209199760102

%N a(n)=(Concatenation of A166064(1..n))/(Sum of A166064(1..n)).

%H Zak Seidov, <a href="/A166066/b166066.txt">Table of n, a(n) for n = 1..33</a>

%p A166064(1..7)=1,0,2,6,8,10,162; hence a(1)=1/1=1, a(2)=10/(1+0)=10, a(3)=102/(1+0+2)=34, a(4)=1026/(1+0+2+6)=34, a(5)=10268/(1+0+2+6+8)=604, a(6)=1026810/(1+0+2+6+8+10)=38030, a(7)=1026810162/(1+0+2+6+8+10+162)=5432858.

%Y Cf. A166064.

%K base,nonn

%O 1,2

%A _Zak Seidov_, Oct 05 2009

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Last modified March 29 00:26 EDT 2024. Contains 371264 sequences. (Running on oeis4.)