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A375858 as a triangular array

1
11
141
111111
12656261
157212212571
112070111127011201
124721794793479321792471
1502660019082250001908266005021
110131980874368116852116852743681980810131

A375858 as a square array

1111111111
141126571202475021013
111562127012179660019808
126212111247931908274368
157701479325000116852
1120217919082116852
1247660074368
150219808
11013
1
1111111111
141126571202475021013
111562127012179660019808
126212111247931908274368
157701479325000116852
1120217919082116852
1247660074368
150219808
11013
1