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A064580
as a triangular array
1
1
1
1
2
2
1
3
5
5
1
4
9
14
13
1
5
14
28
40
36
1
6
20
48
87
118
104
1
7
27
75
161
273
357
309
1
8
35
110
270
536
866
1100
939
1
9
44
154
423
951
1782
2772
3441
2905
1
10
54
208
630
1572
3310
5928
8946
10900
9118
A064580
as a square array
1
1
1
1
1
1
1
1
1
1
1
1
2
3
4
5
6
7
8
9
10
2
5
9
14
20
27
35
44
54
5
14
28
48
75
110
154
208
13
40
87
161
270
423
630
36
118
273
536
951
1572
104
357
866
1782
3310
309
1100
2772
5928
939
3441
8946
2905
10900
9118
A064580
as an upper right triangle
1
1
1
1
1
1
1
1
1
1
1
1
2
3
4
5
6
7
8
9
10
2
5
9
14
20
27
35
44
54
5
14
28
48
75
110
154
208
13
40
87
161
270
423
630
36
118
273
536
951
1572
104
357
866
1782
3310
309
1100
2772
5928
939
3441
8946
2905
10900
9118
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Last modified May 16 03:59 EDT 2024. Contains 372549 sequences. (Running on oeis4.)