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A220688 as a triangular array

1
11
141
112121
13794371
11147457451141
135158511545258513511
11081460273126033126034602710811
13329362057634988615978924634988636205733291
1102522847943128995678

A220688 as a square array

1111111111
1412371143511081332910252
112947455851460273620572847943
137745154523126036349886128995678
1114585131260315978924
1351460276349886
11081362057
13329
1

A220688 as an upper right triangle

1111111111
1412371143511081332910252
112947455851460273620572847943
137745154523126036349886128995678
1114585131260315978924
1351460276349886
11081362057
13329
1

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Last modified June 18 11:09 EDT 2024. Contains 373481 sequences. (Running on oeis4.)