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%I #6 Oct 24 2023 19:31:13
%S 1,1,2,5,5,6,6,15,8,20,29,34,13,22,27,45,36,42,42,42,30,39,48,45,54,
%T 54,53,56,65,49,64,73,84,39,75,73,106,79,83,95,77,90,99,90,108,99,90,
%U 135,126,117,135,126,135,132,141
%N Sum of digits of Catalan numbers.
%Y Cf. A000108.
%K nonn,base
%O 0,3
%A _N. J. A. Sloane_