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A122750 as a triangular array

1
-11
1-21
-11-11
1-21-21
-11-11-11
1-21-21-21
-11-11-11-11
1-21-21-21-21
-11-11-11-11-11
1-21-21-21-21-21

A122750 as a square array

1-11-11-11-11-11
1-21-21-21-21-2
1-11-11-11-11
1-21-21-21-2
1-11-11-11
1-21-21-2
1-11-11
1-21-2
1-11
1-2
1

A122750 as an upper right triangle

1-11-11-11-11-11
1-21-21-21-21-2
1-11-11-11-11
1-21-21-21-2
1-11-11-11
1-21-21-2
1-11-11
1-21-2
1-11
1-2
1

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Last modified April 25 10:22 EDT 2024. Contains 371967 sequences. (Running on oeis4.)