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A255716 as a triangular array

1
21
221
3441
381061
49262181
517338147141
62475120261102191
632121342480936256331
736191653170720793435754691
74824212213764881490441240621691621
852374

A255716 as a square array

122334566778
12489172432364852
1410263375121191242374
1621811203426531221
184726148017073764
11410293620798814
11925634359044
13375412406
1692169
1162
1

A255716 as an upper right triangle

122334566778
12489172432364852
1410263375121191242374
1621811203426531221
184726148017073764
11410293620798814
11925634359044
13375412406
1692169
1162
1

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Last modified April 19 12:11 EDT 2024. Contains 371792 sequences. (Running on oeis4.)