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A123315
as a triangular array
1
3
3
8
10
8
9
12
12
9
4
15
19
15
4
7
15
19
19
15
7
8
18
19
21
19
18
8
9
22
20
11
11
20
22
9
4
15
17
15
18
15
17
15
4
7
15
18
18
20
20
18
18
15
7
8
18
20
22
21
11
21
22
20
18
8
9
22
21
17
19
18
18
19
17
21
22
9
A123315
as a square array
1
3
8
9
4
7
8
9
4
7
8
9
3
10
12
15
15
18
22
15
15
18
22
8
12
19
19
19
20
17
18
20
21
9
15
19
21
11
15
18
22
17
4
15
19
11
18
20
21
19
7
18
20
15
20
11
18
8
22
17
18
21
18
9
15
18
22
19
4
15
20
17
7
18
21
8
22
9
A123315
as an upper right triangle
1
3
8
9
4
7
8
9
4
7
8
9
3
10
12
15
15
18
22
15
15
18
22
8
12
19
19
19
20
17
18
20
21
9
15
19
21
11
15
18
22
17
4
15
19
11
18
20
21
19
7
18
20
15
20
11
18
8
22
17
18
21
18
9
15
18
22
19
4
15
20
17
7
18
21
8
22
9
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Last modified May 13 06:37 EDT 2024. Contains 372498 sequences. (Running on oeis4.)
