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First numerator and then denominator of each element of the 1/3-Pascal triangle (by row), excluding 1's.
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%I #15 Apr 13 2021 19:34:01

%S 3,4,3,4,3,7,3,8,3,7,3,10,3,5,5,10,3,13,3,25,3,10,25,3,13,3,16,3,38,3,

%T 55,3,55,3,38,3,16,3,19,3,18,31,110,3,31,18,19,3,22,3,73,3,49,203,3,

%U 203,3,49,73,3,22,3,25,3,95,3,220,3,350,3,406,3,350,3,220,3,95,3

%N First numerator and then denominator of each element of the 1/3-Pascal triangle (by row), excluding 1's.

%e 1/1; -->

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

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

%e 1/1 4/3 4/3 1/1; --> 4 3 4 3

%e 1/1 7/3 8/3 7/3 1/1; -->

%e 1/1 10/3 5/1 5/1 10/3 1/1;

%e 1/1 13/3 25/3 10/1 25/3 13/3 1/1;

%e 1/1 16/3 38/3 55/3 55/3 38/3 16/3 1/1; ...

%Y Cf. A046534.

%K tabf,nonn,easy,frac,less

%O 1,1

%A _Mohammad K. Azarian_

%E Corrected and extended by Larry Reeves (larryr(AT)acm.org), Apr 06 2000

%E Data further corrected by _Sean A. Irvine_, Apr 13 2021