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A231872 Elements of the Motzkin words sub-operad Motz of TN generated by 00 and 010. 0
1, 11, 111, 121, 1111, 1121, 1211, 1221, 11111, 11121, 11211, 11221, 12111, 12121, 12211, 12221, 12321, 111111, 111121, 111211, 111221, 112111, 112121, 112211, 112221, 112321, 121111, 121121, 121211, 121221, 122111, 122121, 122211, 122221, 122321, 123211, 123221, 123321 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
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
Sequence in context: A273977 A358441 A135464 * A308365 A083278 A039987
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Nov 14 2013
STATUS
approved

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Last modified November 29 14:38 EST 2023. Contains 367445 sequences. (Running on oeis4.)