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%I #9 Jun 22 2013 16:05:38
%S 1,2,1,3,1,12,1,4,1,20,1,5,1,60,1,30,1,6,1,105,1,42,1,7,1,280,1,168,1,
%T 56,1,8,1,504,1,252,1,72,1,9,1,1260,1,840,1,360,1,90,1,10,1,2310,1,
%U 1320,1,495,1,110,1,11,1,5544,1,3960,1,1980,1,660,1,132,1,12,1,10296,1
%N In Leibniz's Harmonic Triangle, write the numerator first and then the denominator of each element to the right of the central elements.
%D L. Comtet, Advanced Combinatorics, Reidel, 1974, p. 83, Problem 25.
%Y Cf. A003506.
%K tabf,nonn,easy
%O 1,2
%A _Mohammad K. Azarian_
%E More terms from _James A. Sellers_, Dec 13 1999
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