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A123641
as a triangular array
1
0
1
1
0
2
0
1
0
4
1
0
2
0
8
0
1
0
4
0
16
1
0
2
0
8
0
32
0
1
0
4
0
16
0
64
1
0
2
0
8
0
32
0
128
0
1
0
4
0
16
0
64
0
256
1
0
2
0
8
0
32
0
128
0
512
0
1
0
4
0
16
0
64
0
256
0
1024
1
A123641
as a square array
1
0
1
0
1
0
1
0
1
0
1
0
1
1
0
1
0
1
0
1
0
1
0
1
2
0
2
0
2
0
2
0
2
0
4
0
4
0
4
0
4
0
4
8
0
8
0
8
0
8
0
16
0
16
0
16
0
16
32
0
32
0
32
0
64
0
64
0
64
128
0
128
0
256
0
256
512
0
1024
A123641
as an upper right triangle
1
0
1
0
1
0
1
0
1
0
1
0
1
1
0
1
0
1
0
1
0
1
0
1
2
0
2
0
2
0
2
0
2
0
4
0
4
0
4
0
4
0
4
8
0
8
0
8
0
8
0
16
0
16
0
16
0
16
32
0
32
0
32
0
64
0
64
0
64
128
0
128
0
256
0
256
512
0
1024
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Last modified May 12 23:04 EDT 2024. Contains 372497 sequences. (Running on oeis4.)