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A202997 as a simple table

n a(n)
1 3
2 23
3 223
4 31223
5 231223
6 31231223
7 2931231223
8 372931231223
9 17372931231223
10 1317372931231223
11 1971317372931231223
12 1571971317372931231223
13 891571971317372931231223
14 79891571971317372931231223
15 25179891571971317372931231223
16 4325179891571971317372931231223

[3,23,223,31223,231223,31231223,2931231223,
 372931231223,17372931231223,1317372931231223,
 1971317372931231223,1571971317372931231223,
 891571971317372931231223,
 79891571971317372931231223,
 25179891571971317372931231223,
 4325179891571971317372931231223]

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Last modified April 24 18:17 EDT 2024. Contains 371962 sequences. (Running on oeis4.)