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A347351 as a triangular array

1
21
301
4201
51101
642101
7321101
88331101
987321101
101895421101
11211385321101
1240241686321101
135534211385321101

A347351 as a square array

12345678910111213
1021438818214055
10122379132434
101133581621
1011245813
10112368
1011235
101123
10112
1011
101
10
1
12345678910111213
1021438818214055
10122379132434
101133581621
1011245813
10112368
1011235
101123
10112
1011
101
10
1