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A238123 as a triangular array

1
01
011
0301
07201
0205001
056145001
018235140001
058913228140001
02088399904200001
075221556285904200001
02882053461232165132000001

A238123 as a square array

100000000000
113720561825892088752228820
1025143513239915565346
10051428902851232
1000144290165
1000042132
100000
10000
1000
100
10
1
100000000000
113720561825892088752228820
1025143513239915565346
10051428902851232
1000144290165
1000042132
100000
10000
1000
100
10
1