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A050487 Geometric Connell sequence: start with 1; then next two numbers == 2 mod 3; next four == 3 mod 3; next eight == 1 mod 3; etc. 2

%I #10 Mar 03 2015 00:00:17

%S 1,2,5,6,9,12,15,16,19,22,25,28,31,34,37,38,41,44,47,50,53,56,59,62,

%T 65,68,71,74,77,80,83,84,87,90,93,96,99,102,105,108,111,114,117,120,

%U 123,126,129,132,135,138,141,144,147,150,153,156,159,162

%N Geometric Connell sequence: start with 1; then next two numbers == 2 mod 3; next four == 3 mod 3; next eight == 1 mod 3; etc.

%H R. Stephan, <a href="/somedcgf.html">Some divide-and-conquer sequences ...</a>

%H R. Stephan, <a href="/A079944/a079944.ps">Table of generating functions</a>

%F a(n) = 3n - 2*(1 + floor(log_2(n)).

%Y Cf. A049039, A050488.

%K easy,nonn

%O 1,2

%A _James A. Sellers_, Dec 26 1999

%E More terms from _Ralf Stephan_, Oct 11 2003

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Last modified April 24 09:42 EDT 2024. Contains 371935 sequences. (Running on oeis4.)