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A131226
as a triangular array
1
3
4
1
6
7
3
4
9
10
1
6
7
12
13
3
4
9
10
15
16
1
6
7
12
13
18
19
3
4
9
10
15
16
21
22
1
6
7
12
13
18
19
24
25
3
4
9
10
15
16
21
22
27
28
1
6
7
12
13
18
19
24
25
30
31
3
4
9
10
15
16
21
22
27
28
33
34
A131226
as a square array
1
3
1
3
1
3
1
3
1
3
1
3
4
6
4
6
4
6
4
6
4
6
4
7
9
7
9
7
9
7
9
7
9
10
12
10
12
10
12
10
12
10
13
15
13
15
13
15
13
15
16
18
16
18
16
18
16
19
21
19
21
19
21
22
24
22
24
22
25
27
25
27
28
30
28
31
33
34
A131226
as an upper right triangle
1
3
1
3
1
3
1
3
1
3
1
3
4
6
4
6
4
6
4
6
4
6
4
7
9
7
9
7
9
7
9
7
9
10
12
10
12
10
12
10
12
10
13
15
13
15
13
15
13
15
16
18
16
18
16
18
16
19
21
19
21
19
21
22
24
22
24
22
25
27
25
27
28
30
28
31
33
34
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Last modified May 21 22:16 EDT 2024. Contains 372741 sequences. (Running on oeis4.)
