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A248905
as
a triangular array
1
1
2
1
5
5
1
30
192
15
1
1247
A248905
as
a square array
1
1
1
1
1
2
5
30
1247
5
192
15
A248905
as
an upper right triangle
1
1
1
1
1
2
5
30
1247
5
192
15