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A053655 as a simple table

n a(n)
1 1
2 1221
3 1233321
4 1234444321
5 1234555554321
6 1234566666654321
7 1234567777777654321
8 1234567888888887654321
9 1234567899999999987654321
10 1234567901111111110987654321
11 1234567901222222222220987654321
12 1234567901233333333333320987654321 

[1,1221,1233321,1234444321,1234555554321,
 1234566666654321,1234567777777654321,
 1234567888888887654321,1234567899999999987654321,
 1234567901111111110987654321,
 1234567901222222222220987654321,
 1234567901233333333333320987654321]

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Last modified May 26 02:43 EDT 2024. Contains 372807 sequences. (Running on oeis4.)