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A190907 as a triangular array

1
11
131
1653
11015212
11535841810
12170252901105
1281266303306606535
1362101386990286045552514
145330277225741001022754200238126

A190907 as a square array

1111111111
136101521283645
15153570126210330
3218425263013862772
218903309902574
10110660286010010
5654552275
355254200
14238
126
1111111111
136101521283645
15153570126210330
3218425263013862772
218903309902574
10110660286010010
5654552275
355254200
14238
126