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A375300 as a triangular array

1
12
213
2431
32541
365421
4376521
48765321
549876321
51098764321
6511109874321
612111098754321
76131211109854321

A375300 as a square array

1122334455667
21426384105126
33557799111113
1446688101012
1255779911
123668810
1234779
123458
12345
1234
123
12
1
1122334455667
21426384105126
33557799111113
1446688101012
1255779911
123668810
1234779
123458
12345
1234
123
12
1