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A022470 formatted as a simple table:

n a(n)
0 2
1 21
2 2111
3 2113
4 211231
5 2112213111
6 211222113113
7 21122312311231
8 2112223111213112213111
9 21122331132111311222113113
10 211222321231211331122312311231 

[2,21,2111,2113,211231,2112213111,211222113113,
 21122312311231,2112223111213112213111,
 21122331132111311222113113,
 211222321231211331122312311231]

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Last modified December 6 22:55 EST 2009. Contains 170429 sequences.

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