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Distinct even numbers in writing first numerator and then denominator of each element of the 1/4-Pascal triangle (by row).
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%I #8 Jun 22 2013 16:05:40

%S 4,2,8,112,102,70,616,3432,6864,606,2080,10920,17810,23738,2686,28730,

%T 41548,23766,70278,13566,196,5320,102714,184110,352716,286824,1469650,

%U 11408,155848,4293962,5289448,2400,1378850,9583410,21915550,37442160

%N Distinct even numbers in writing first numerator and then denominator of each element of the 1/4-Pascal triangle (by row).

%e 1/1; 1/1 1/1; 1/1 1/4 1/1; 1/1 5/4 5/4 1/1; 1/1 9/4 5/2 9/4 1/1; 1/1 13/4 19/4 19/4 13/4 1/1; 1/1 17/4 8/1 19/2 8/1 17/4 1/1; 1/1 21/4 49/4 35/2 35/2 49/4 21/4 1/1; ...

%Y Cf. A046563.

%K tabf,nonn

%O 1,1

%A _Mohammad K. Azarian_

%E More terms from _James A. Sellers_, Dec 14 1999