%I #6 Jan 20 2014 22:21:15
%S 1,1,1,1,2,2,1,2,5,4,1,3,10,18,12,1,3,16,51,71,34,1,4,26,116,271,280,
%T 111,1,4,36,233,776,1349,1124,360,1,5,53,421,1908,4749,6487,4415,1226
%N Unlabeled super-Catalan numbers: patterns of nonintersecting chords joining unlabeled points on a flippable circle, triangle decomposed by number of chords.
%C Decomposition of A183758 by number of chords (pairs of parentheses). Row sums are A183758. See A183758 for description.
%C Triangle is
%C 1
%C 1 1
%C 1 2 2
%C 1 2 5 4
%C 1 3 10 18 12
%C 1 3 16 51 71 34
%C ...
%C Right diagonal is apparently A001895.
%Y Decomposition of A183758. Cf. analogous decomposition of super-Catalan numbers in triangle A033282.
%K nonn,tabl
%O 1,5
%A _David Scambler_, Jan 06 2011