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A218218
as a triangular array
1
0
0
0
1
0
0
1
0
0
0
1
0
0
0
0
1
1
0
0
0
0
1
1
0
0
0
0
0
1
2
0
0
0
0
0
0
1
2
0
0
0
0
0
0
0
1
3
1
0
0
0
0
0
0
0
1
3
1
0
0
0
0
0
0
0
0
1
4
2
0
0
0
0
0
0
0
0
0
1
4
3
0
0
0
0
0
0
0
0
0
0
1
5
4
0
0
0
0
0
0
0
0
0
0
A218218
as a square array
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
1
1
2
2
3
3
4
4
5
0
0
0
0
0
0
1
1
2
3
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
A218218
as an upper right triangle
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
1
1
2
2
3
3
4
4
5
0
0
0
0
0
0
1
1
2
3
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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Last modified May 23 02:40 EDT 2024. Contains 372758 sequences. (Running on oeis4.)
