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A109223
as a triangular array
1
1
1
1
1
1
1
3
1
1
1
3
5
1
1
1
6
5
7
1
1
1
6
15
7
9
1
1
1
10
15
28
9
11
1
1
1
10
35
28
45
11
13
1
1
1
15
35
84
45
66
13
15
1
1
1
15
70
84
165
66
91
15
17
1
1
1
21
70
210
165
286
91
120
17
19
1
1
1
21
126
210
A109223
as a square array
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
3
6
6
10
10
15
15
21
21
1
1
5
5
15
15
35
35
70
70
126
1
1
7
7
28
28
84
84
210
210
1
1
9
9
45
45
165
165
1
1
11
11
66
66
286
1
1
13
13
91
91
1
1
15
15
120
1
1
17
17
1
1
19
1
1
1
A109223
as an upper right triangle
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
3
6
6
10
10
15
15
21
21
1
1
5
5
15
15
35
35
70
70
126
1
1
7
7
28
28
84
84
210
210
1
1
9
9
45
45
165
165
1
1
11
11
66
66
286
1
1
13
13
91
91
1
1
15
15
120
1
1
17
17
1
1
19
1
1
1
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Last modified June 8 03:40 EDT 2024. Contains 373207 sequences. (Running on oeis4.)
