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A127775
as a triangular array
1
0
3
0
0
5
0
0
0
7
0
0
0
0
9
0
0
0
0
0
11
0
0
0
0
0
0
13
0
0
0
0
0
0
0
15
0
0
0
0
0
0
0
0
17
0
0
0
0
0
0
0
0
0
19
0
0
0
0
0
0
0
0
0
0
21
0
0
0
0
0
0
0
0
0
0
0
23
0
0
0
0
0
0
0
0
0
0
0
0
25
0
0
0
0
0
0
0
0
0
0
A127775
as a square array
1
0
0
0
0
0
0
0
0
0
0
0
0
0
3
0
0
0
0
0
0
0
0
0
0
0
0
5
0
0
0
0
0
0
0
0
0
0
0
7
0
0
0
0
0
0
0
0
0
0
9
0
0
0
0
0
0
0
0
0
11
0
0
0
0
0
0
0
0
13
0
0
0
0
0
0
0
15
0
0
0
0
0
0
17
0
0
0
0
0
19
0
0
0
0
21
0
0
23
0
25
A127775
as an upper right triangle
1
0
0
0
0
0
0
0
0
0
0
0
0
0
3
0
0
0
0
0
0
0
0
0
0
0
0
5
0
0
0
0
0
0
0
0
0
0
0
7
0
0
0
0
0
0
0
0
0
0
9
0
0
0
0
0
0
0
0
0
11
0
0
0
0
0
0
0
0
13
0
0
0
0
0
0
0
15
0
0
0
0
0
0
17
0
0
0
0
0
19
0
0
0
0
21
0
0
23
0
25
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Last modified June 8 16:22 EDT 2024. Contains 373224 sequences. (Running on oeis4.)
