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A072030
as a triangular array
1
2
2
3
1
3
4
3
3
4
5
2
1
2
5
6
4
4
4
4
6
7
3
4
1
4
3
7
8
5
2
5
5
2
5
8
9
4
5
3
1
3
5
4
9
10
6
5
5
6
6
5
5
6
10
11
5
3
2
5
1
5
2
3
5
11
12
7
6
6
5
7
7
5
6
6
7
12
13
6
6
4
6
4
1
4
6
4
6
6
13
14
8
4
6
2
3
8
8
3
2
6
4
8
14
A072030
as a square array
1
2
3
4
5
6
7
8
9
10
11
12
13
14
2
1
3
2
4
3
5
4
6
5
7
6
8
3
3
1
4
4
2
5
5
3
6
6
4
4
2
4
1
5
3
5
2
6
4
6
5
4
4
5
1
6
5
5
6
2
6
3
2
3
6
1
7
4
3
7
5
5
5
5
7
1
8
8
4
5
2
5
4
8
9
6
3
6
6
3
10
5
6
4
2
11
7
6
6
12
6
4
13
8
14
A072030
as an upper right triangle
1
2
3
4
5
6
7
8
9
10
11
12
13
14
2
1
3
2
4
3
5
4
6
5
7
6
8
3
3
1
4
4
2
5
5
3
6
6
4
4
2
4
1
5
3
5
2
6
4
6
5
4
4
5
1
6
5
5
6
2
6
3
2
3
6
1
7
4
3
7
5
5
5
5
7
1
8
8
4
5
2
5
4
8
9
6
3
6
6
3
10
5
6
4
2
11
7
6
6
12
6
4
13
8
14
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Last modified May 15 05:14 EDT 2024. Contains 372536 sequences. (Running on oeis4.)
