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A130415 as a triangular array

1
01
-506
0-508
350-112080
070-28024
-2101260-2160112
0-1501080-2160128
1650-1584047520-563202304
0550-616021120-281601280
-143020020-91520183040-1664005632
0-91014560-7488

A130415 as a square array

10-50350-2101650-1430
10-5070-150550-91
60-11201260-1584020020
80-2801080-61601456
800-216047520-91520
240-216021120-7488
1120-5632018304
1280-28160
23040-16640
12800
5632
10-50350-2101650-1430
10-5070-150550-91
60-11201260-1584020020
80-2801080-61601456
800-216047520-91520
240-216021120-7488
1120-5632018304
1280-28160
23040-16640
12800
5632