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A054351 as a simple table

n a(n)
0 1
1 12
2 1221
3 1221121
4 12211212212
5 122112122122112112
6 1221121221221121122121121221
7 1221121221221121122121121221121121221221121
8 12211212212211211221211212211211212212211212212112112212211212212

[1,12,1221,1221121,12211212212,122112122122112112,
 1221121221221121122121121221,
 1221121221221121122121121221121121221221121,
 12211212212211211221211212211211212212211212212112\
 112212211212212]

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Last modified May 13 19:36 EDT 2021. Contains 343868 sequences. (Running on oeis4.)