A046532 - OEIS

%I #11 Jun 22 2013 16:05:39

%S 1,1,1,1,1,1,1,1,1,1,1,1,1,3,3,1,1,1,1,5,3,1,5,1,1,1,1,7,11,11,7,1,1,

%T 1,1,9,9,1,11,1,9,1,9,1,1,1,1,11,27,20,1,20,1,27,11,1,1,1,1,13,19,1,

%U 67,40,1,67,19,1,13,1,1,1,1,15,51

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

%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;

%e without the 2's.

%Y Cf. A046213.

%K tabf,nonn,less

%O 1,14

%A _Mohammad K. Azarian_