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A026725 as a triangular array

1
11
121
1431
15741
16161151
1722271661
182965432271
193794108652981
11046131267173943791
1115617739844026713146101
11267233

A026725 as a square array

111111111111
12456789101112
13716222937465667
1411276594131177233
151643108267398
162265173440
172994267
1837131
1946
110
1

A026725 as an upper right triangle

111111111111
12456789101112
13716222937465667
1411276594131177233
151643108267398
162265173440
172994267
1837131
1946
110
1

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Last modified December 16 13:43 EST 2018. Contains 318167 sequences. (Running on oeis4.)