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A317958 as a simple table

n a(n)
0 12
1 12212
2 12212112212
3 12212112212112212112212
4 12212112212112212112212212212112212112212112212
5 12212112212112212112212212212112212112212112212112212112212112212112212212212112212112212112212

[12,12212,12212112212,12212112212112212112212,
 12212112212112212112212212212112212112212112212,
 12212112212112212112212212212112212112212112212112\
 212112212112212112212212212112212112212112212]

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Last modified September 30 17:27 EDT 2022. Contains 357106 sequences. (Running on oeis4.)