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A035486 as a triangular array

1
22
334
4426
55528
666776
77749213
8888211122
999910981118
101010106129161716
111111111171414121423
121212121213116921213
1313131313815

A035486 as a square array

12345678910111213
2345678910111213
425678910111213
62748910111213
8792106111213
62119127138
131289141115
21116146
1817129
161421
232
13
12345678910111213
2345678910111213
425678910111213
62748910111213
8792106111213
62119127138
131289141115
21116146
1817129
161421
232
13