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A046215 First numerator and then denominator of 1/2-Pascal triangle (by row), excluding 1's. 0

%I

%S 2,3,2,3,2,5,2,3,5,2,7,2,11,2,11,2,7,2,9,2,9,11,9,9,2,11,2,27,2,20,20,

%T 27,2,11,2,13,2,19,67,2,40,67,2,19,13,2,15,2,51,2,105,2,147,2,147,2,

%U 105,2,51,2,15,2,17,2,33,78,126,147,126,78,33,17,2,19,2,83,2,111,204

%N First numerator and then denominator of 1/2-Pascal triangle (by row), excluding 1's.

%e 1/1; -->

%e 1/1 1/1; -->

%e 1/1 1/2 1/1; --> 2

%e 1/1 3/2 3/2 1/1; --> 3 2 3 2

%e 1/1 5/2 3/1 5/2 1/1; --> ...

%e 1/1 7/2 11/2 11/2 7/2 1/1;

%e 1/1 9/2 9/1 11/1 9/1 9/2 1/1;

%e 1/1 11/2 27/2 20/1 20/1 27/2 11/2 1/1; ...

%Y Cf. A046213.

%K tabf,nonn,frac,less

%O 1,1

%A _Mohammad K. Azarian_

%E More terms from Larry Reeves (larryr(AT)acm.org), Apr 06 2000

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Last modified September 24 08:31 EDT 2021. Contains 347623 sequences. (Running on oeis4.)