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A119027 Value of the concatenation of the first n+1 terms of A118605, seen as a binary number. 0

%I

%S 0,1,2,4,9,18,36,72,145,291,582,1164,2329,4658,9316,18632,37264,74529,

%T 149059,298118,596236,1192472,2384944,4769888,9539777,19079555,

%U 38159110,76318220,152636440,305272880,610545760,1221091520,2442183041

%N Value of the concatenation of the first n+1 terms of A118605, seen as a binary number.

%C a(n) = 2*a(n-1) + A118605(n), a(0) = 0.

%K nonn,base

%O 0,3

%A _Reinhard Zumkeller_, May 09 2006

%E Edited by _Charles R Greathouse IV_, Apr 29 2010

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Last modified June 22 17:18 EDT 2021. Contains 345388 sequences. (Running on oeis4.)