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A220473
as
a triangular array
0
0
1
0
1
87
0
1
447
4470
0
1
999
90390
172850
0
1
1935
424374
A220473
as
a square array
0
0
0
0
0
0
1
1
1
1
1
87
447
999
1935
4470
90390
424374
172850
A220473
as
an upper right triangle
0
0
0
0
0
0
1
1
1
1
1
87
447
999
1935
4470
90390
424374
172850