2112122

Appears in sequences

• Trajectory of the word "211" under the Watanabe tag system {11, 2122} described in A291067 (adapted to the alphabet {1,2}).at n=6A291075
• The word 1 belongs to the sequence, and whenever a word w belongs to the sequence, then the words consisting of 1's and 2's whose run lengths transform equals w also belong to the sequence.at n=34A376637