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A340260 as a triangular array

1
12
112
1223
11223
123445
1112334
12345667
112234556
1223456778
11233456778
123456789101011
1111223456778

A340260 as a square array

1111111111111
212121212121
22231322231
3242423341
343534352
53645462
4656573
757684
67795
87106
8107
117
8

A340260 as an upper right triangle

1111111111111
212121212121
22231322231
3242423341
343534352
53645462
4656573
757684
67795
87106
8107
117
8

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Last modified June 20 18:00 EDT 2024. Contains 373532 sequences. (Running on oeis4.)