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A343953 as a triangular array

0
01
014
0129
012516
0123825
012361336
0123491849
012347122564
01234510173281
0123458132241100
012345611162750121
0123456914213461144

A343953 as a square array

0000000000000
111111111111
42222222222
9533333333
1686444444
2513975555
36181210866
49251713119
6432221614
81412721
1005034
12161
144
0000000000000
111111111111
42222222222
9533333333
1686444444
2513975555
36181210866
49251713119
6432221614
81412721
1005034
12161
144