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A104766 as a triangular array

1
21
521
10521
2010521
382010521
71382010521
13071382010521

A104766 as a square array

12510203871130
12510203871
125102038
1251020
12510
125
12
1
12510203871130
12510203871
125102038
1251020
12510
125
12
1