A231870 Elements of the sub-operad FCat(2) of TN generated by 00, 01, 02.

1, 11, 12, 13, 111, 112, 113, 121, 122, 123, 124, 131, 132, 133, 134, 135, 1111, 1112, 1113, 1121, 1122, 1123, 1124, 1131, 1132, 1133, 1134, 1135, 1211, 1212, 1213, 1221, 1222, 1223, 1224, 1231, 1232, 1233, 1234, 1235, 1241, 1242, 1243, 1244, 1245, 1246, 1311, 1312, 1313, 1321, 1322, 1323, 1324, 1331, 1332, 1333, 1334

Offset: 1

Author

N. J. A. Sloane, Nov 14 2013

Keywords

• nonn

Comments

Since nonzero terms in the OEIS may not begin with 0, 1 has been added to all the digits.

Links

• S. Giraudo, Combinatorial operads from monoids, arXiv preprint arXiv:1306.6938, 2013

Crossrefs

Cf. A071159.