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First numerator and then denominator of elements to right of central elements of 1/2-Pascal triangle (by row), excluding 1's.
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%I #15 Apr 08 2021 07:28:31

%S 3,2,5,2,11,2,7,2,9,9,2,20,27,2,11,2,67,2,19,13,2,147,2,105,2,51,2,15,

%T 2,126,78,33,17,2,273,204,111,83,2,19,2,477,315,305,2,51,21,2,1023,

%U 792,935,2,407,2,123,2,23,2,1815,2519,2,671,265,73,25,2,3861

%N First numerator and then denominator of elements to right of central elements 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; -->

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

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

%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;

%e ...

%Y Cf. A046213.

%K tabf,nonn,frac,less

%O 1,1

%A _Mohammad K. Azarian_

%E More terms from _Sean A. Irvine_, Apr 07 2021