A129994 - cp's OEIS frontend

A129994 Triangle read by rows: 2*A007318 - I.

n	a(n)
0	1
1	2
2	1
3	2
4	4
5	1
6	2
7	6
8	6
9	1
10	2
11	8
12	12
13	8
14	1
15	2
16	10
17	20
18	20
19	10
20	1
21	2
22	12
23	30
24	40
25	30
26	12
27	1
28	2
29	14
30	42
31	70
32	70
33	42
34	14
35	1
36	2
37	16
38	56
39	112
40	140
41	112
42	56
43	16
44	1
45	2
46	18
47	72
48	168
49	252
50	252
51	168
52	72
53	18
54	1

[1, 2, 1, 2, 4, 1, 2, 6, 6, 1, 2, 8, 12, 8, 1, 2, 10, 20, 20, 10, 1, 2, 12, 30, 40, 30, 12, 1, 2, 14, 42, 70, 70, 42, 14, 1, 2, 16, 56, 112, 140, 112, 56, 16, 1, 2, 18, 72, 168, 252, 252, 168, 72, 18, 1]

cp's OEIS Frontend

A129994 Triangle read by rows: 2*A007318 - I.

Table of values

List of values

n	a(n)
0	1
1	2
2	1
3	2
4	4
5	1
6	2
7	6
8	6
9	1
10	2
11	8
12	12
13	8
14	1
15	2
16	10
17	20
18	20
19	10
20	1
21	2
22	12
23	30
24	40
25	30
26	12
27	1
28	2
29	14
30	42
31	70
32	70
33	42
34	14
35	1
36	2
37	16
38	56
39	112
40	140
41	112
42	56
43	16
44	1
45	2
46	18
47	72
48	168
49	252
50	252
51	168
52	72
53	18
54	1

n	a(n)
0	1
1	2
2	1
3	2
4	4
5	1
6	2
7	6
8	6
9	1
10	2
11	8
12	12
13	8
14	1
15	2
16	10
17	20
18	20
19	10
20	1
21	2
22	12
23	30
24	40
25	30
26	12
27	1
28	2
29	14
30	42
31	70
32	70
33	42
34	14
35	1
36	2
37	16
38	56
39	112
40	140
41	112
42	56
43	16
44	1
45	2
46	18
47	72
48	168
49	252
50	252
51	168
52	72
53	18
54	1

n	a(n)
0	1
1	2
2	1
3	2
4	4
5	1
6	2
7	6
8	6
9	1
10	2
11	8
12	12
13	8
14	1
15	2
16	10
17	20
18	20
19	10
20	1
21	2
22	12
23	30
24	40
25	30
26	12
27	1
28	2
29	14
30	42
31	70
32	70
33	42
34	14
35	1
36	2
37	16
38	56
39	112
40	140
41	112
42	56
43	16
44	1
45	2
46	18
47	72
48	168
49	252
50	252
51	168
52	72
53	18
54	1