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A216915 as a triangular array

1
11
111
1111
21111
211111
12121111
121211111
4812121111
144121211111
144038112121111
1440381121211111
17280380

A216915 as a square array

1111221212481441440144017280
111111111333
111122228880
111111111
1111221212
1111111
111122
11111
1111
111
11
1

A216915 as an upper right triangle

1111221212481441440144017280
111111111333
111122228880
111111111
1111221212
1111111
111122
11111
1111
111
11
1

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Last modified August 6 12:33 EDT 2020. Contains 336246 sequences. (Running on oeis4.)