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A172119 as a triangular array

1
11
121
1321
14421
157421
16128421
1720158421
183328168421
19545231168421
11088966032168421
1111431771166332168421
112232326224124643216

A172119 as a square array

1111111111111
123456789101112
12471220335488143232
124815285296177326
1248163160116224
1248163263124
1248163264
12481632
124816
124
12
1

A172119 as an upper right triangle

1111111111111
123456789101112
12471220335488143232
124815285296177326
1248163160116224
1248163263124
1248163264
12481632
124816
124
12
1

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Last modified March 29 02:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)