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A204253 as a triangular array

3
11
222
3333
11111
222222
3333333
11111111
222222222
3333333333
11111111111
222222222222
3333333333333
11111111

A204253 as a square array

31231231231231
1231231231231
231231231231
31231231231
1231231231
231231231
31231231
1231231
23123
3123
123
23
3

A204253 as an upper right triangle

31231231231231
1231231231231
231231231231
31231231231
1231231231
231231231
31231231
1231231
23123
3123
123
23
3

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Last modified November 29 00:31 EST 2023. Contains 367422 sequences. (Running on oeis4.)