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A350212 as a triangular array

1
01
301
17901
169681801
20798451703001
312611247425353404501
5544832188274365959155956301
113367534435864875308116424118309528401
26251761510203077719961388262592426195421294142810801

A350212 as a square array

1031716920793126155448311336753262517615
10968845124742188274435864102030777
101817025354365987530819961388
103034059151164242625924
104559511830261954
106395221294
10841428
10108
10
1
1031716920793126155448311336753262517615
10968845124742188274435864102030777
101817025354365987530819961388
103034059151164242625924
104559511830261954
106395221294
10841428
10108
10
1