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A131922 as a triangular array

1
23
355
4777
59999
61111111111
7131313131313
815151515151515
91717171717171717
10191919191919191919
1121212121212121212121
122323232323232323232323

A131922 as a square array

123456789101112
357911131517192123
57911131517192123
7911131517192123
911131517192123
11131517192123
131517192123
1517192123
17192123
192123
2123
23

A131922 as an upper right triangle

123456789101112
357911131517192123
57911131517192123
7911131517192123
911131517192123
11131517192123
131517192123
1517192123
17192123
192123
2123
23

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Last modified April 28 09:58 EDT 2024. Contains 372037 sequences. (Running on oeis4.)