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A248975 as a triangular array

1
21
-1-11
-12-1041
4534-14-31
406319-124-3361
-2357-1847731187-39-51
-26968-2118883122182-424-6881
223769175700-69052-180343566548-76-71
30968102432333-955048-250126490527730-1000-115101

A248975 as a square array

12-1-1245406-2357-269682237693096810
1-1-1034319-1847-211881757002432333
14-14-1247318312-69052-955048
1-3-331872182-18034-250126
16-39-424356649052
1-5-685487730
18-76-1000
1-7-115
110
1
12-1-1245406-2357-269682237693096810
1-1-1034319-1847-211881757002432333
14-14-1247318312-69052-955048
1-3-331872182-18034-250126
16-39-424356649052
1-5-685487730
18-76-1000
1-7-115
110
1