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A026626 as a triangular array

1
11
131
1441
16861
17141471
1921282191
11030494930101
1124079987940121
1135211917717711952131
1156517129635429617165151
11680

A026626 as a square array

111111111111
1346791012131516
14814213040526580
1614284979119171
17214998177296
193079177354
11040119296
11252171
11365
115
1

A026626 as an upper right triangle

111111111111
1346791012131516
14814213040526580
1614284979119171
17214998177296
193079177354
11040119296
11252171
11365
115
1

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Last modified January 24 18:36 EST 2022. Contains 350565 sequences. (Running on oeis4.)