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A293945 Orbit of word "2" under De Mol's 5-shift tag system over the alphabet {1,2} defined in the Comments.

Table of values

n a(n)
1 2
2 222
3 21222
4 1221222
5 222112
6 21221222
7 2221221222
8 212221221222
9 12212221221222
10 2212212222112
11 122221121221222
12 11212212222112
13 2122221122112
14 211221121221222
15 11212212221221222
16 2122212212222112
17 122122221121221222
18 22211212212222112
19 2122122221121221222
20 222211212212221221222

List of values

[2, 222, 21222, 1221222, 222112, 21221222, 2221221222, 212221221222, 12212221221222, 2212212222112, 122221121221222, 11212212222112, 2122221122112, 211221121221222, 11212212221221222, 2122212212222112, 122122221121221222, 22211212212222112, 2122122221121221222, 222211212212221221222]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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