A231875 - OEIS

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A231875

Elements of the triassociative sub-operad Tri of TN generated by 01, 10 and 11.

0

2, 12, 21, 22, 112, 121, 122, 211, 212, 221, 222, 1112, 1121, 1122, 1211, 1212, 1221, 1222, 2111, 2112, 2121, 2122, 2211, 2212, 2221, 2222

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OFFSET

1,1

COMMENTS

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

LINKS

Table of n, a(n) for n=1..26.

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

CROSSREFS

Sequence in context: A185399 A096108 A098941 * A369303 A031001 A048955

Adjacent sequences: A231872 A231873 A231874 * A231876 A231877 A231878

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Nov 15 2013

STATUS

approved