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 A046216 First denominator and then numerator of 1/2-Pascal triangle (by row), excluding 1's. 0

%I

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

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

%U 105,2,51,2,15,2,17,33,78,126,147,126,78,33,2,17,2

%N First denominator and then numerator 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; --> 2 3 2 3

%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 _Sean A. Irvine_, Apr 07 2021

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Last modified July 30 04:06 EDT 2021. Contains 346348 sequences. (Running on oeis4.)