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A173885 as a triangular array

1
11
1161
12082081
120802704020801
11936025168002516800193601
117617621317296021317296002131729601761761
1159140817522993488163098631696016309863169601752299348815914081
1

A173885 as a square array

111111111
1162082080193601761761591408
120827040251680021317296017522993488
12080251680021317296001630986316960
1193602131729601630986316960
117617617522993488
11591408
1
111111111
1162082080193601761761591408
120827040251680021317296017522993488
12080251680021317296001630986316960
1193602131729601630986316960
117617617522993488
11591408
1