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A216948 as a triangular array

1
11
131
1571
1619151
1102267311
1125667229631
1-241761592257651271

A216948 as a square array

11111111
13561012-24
17192256176
1156767159
131229225
163765
1127
1
11111111
13561012-24
17192256176
1156767159
131229225
163765
1127
1