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A191781
as a triangular array
1
1
1
1
1
1
2
2
1
1
3
3
2
1
1
6
6
4
2
1
1
10
10
7
4
2
1
1
20
20
14
8
4
2
1
1
35
35
25
15
8
4
2
1
1
70
70
50
30
16
8
4
2
1
1
126
126
91
56
31
16
8
4
2
1
1
252
252
182
112
62
32
16
8
4
2
1
1
462
462
336
210
119
63
32
16
8
4
2
1
1
A191781
as a square array
1
1
1
2
3
6
10
20
35
70
126
252
462
1
1
2
3
6
10
20
35
70
126
252
462
1
1
2
4
7
14
25
50
91
182
336
1
1
2
4
8
15
30
56
112
210
1
1
2
4
8
16
31
62
119
1
1
2
4
8
16
32
63
1
1
2
4
8
16
32
1
1
2
4
8
16
1
1
2
4
8
1
1
2
4
1
1
2
1
1
1
A191781
as an upper right triangle
1
1
1
2
3
6
10
20
35
70
126
252
462
1
1
2
3
6
10
20
35
70
126
252
462
1
1
2
4
7
14
25
50
91
182
336
1
1
2
4
8
15
30
56
112
210
1
1
2
4
8
16
31
62
119
1
1
2
4
8
16
32
63
1
1
2
4
8
16
32
1
1
2
4
8
16
1
1
2
4
8
1
1
2
4
1
1
2
1
1
1
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Last modified May 21 17:21 EDT 2024. Contains 372738 sequences. (Running on oeis4.)
