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A376571 as a triangular array

2
34
444
58923
66686
7797921
8888888
999999915
1010101015212152152
11111111111111151511
12121212122121121221153
131313131321212817215321

A376571 as a square array

2345678910111213
448678910111213
49698910111213
23878910111213
698915111213
218921112121
8921112121
1552151228
152151217
112121
15353
21
2345678910111213
448678910111213
49698910111213
23878910111213
698915111213
218921112121
8921112121
1552151228
152151217
112121
15353
21