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A048004 as a triangular array

1
11
121
1421
17521
11211521
1202312521
133472712521
15494592812521
188185127632812521
1143360269139642812521
1232694563303143642812521
137613281167653315144642812521

A048004 as a square array

1111111111111
12471220335488143232376
125112347941853606941328
1251227591272695631167
125122863139303653
125122864143315
125122864144
125122864
1251228
12512
125
12
1

A048004 as an upper right triangle

1111111111111
12471220335488143232376
125112347941853606941328
1251227591272695631167
125122863139303653
125122864143315
125122864144
125122864
1251228
12512
125
12
1

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Last modified March 18 22:56 EDT 2024. Contains 370952 sequences. (Running on oeis4.)