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A054526 as a triangular array

1
11
112
1122
11224
112242
1122426
11224264
112242646
1122426464
112242646410
1122426464104
112242646410412

A054526 as a square array

1111111111111
111111111111
22222222222
2222222222
444444444
22222222
6666666
444444
66666
4444
101010
44
12

A054526 as an upper right triangle

1111111111111
111111111111
22222222222
2222222222
444444444
22222222
6666666
444444
66666
4444
101010
44
12

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Last modified February 7 12:58 EST 2023. Contains 360123 sequences. (Running on oeis4.)