%I #10 Nov 03 2022 12:21:15
%S 1,11,12,21,111,112,121,122,123,132,211,212,221,231,321,1111,1112,
%T 1121,1122,1123,1132,1211,1212,1221,1222,1223,1231,1232,1233,1234,
%U 1243,1321,1322,1323,1332,1342,1432,2111,2112,2121,2122,2123,2132,2211,2212,2221,2231,2311,2312,2321,2331,2341,2431,3211,3212,3221,3231,3321,3421,4321
%N Elements of the Schroeder trees suboperad Schr of TN generated by 00, 01, 10.
%C Since nonzero terms in the OEIS may not begin with 0, 1 has been added to all the digits.
%H S. Giraudo, <a href="http://arxiv.org/abs/1306.6938">Combinatorial operads from monoids</a>, arXiv preprint arXiv:1306.6938 [math.CO], 20132015.
%K nonn
%O 1,2
%A _N. J. A. Sloane_, Nov 14 2013
