A167948 - cp's OEIS frontend

A167948 Triangle read by rows, A101688 * (an infinite lower triangular matrix with A002083 as the main diagonal and the rest zeros).

n	a(n)
1	1
2	0
3	1
4	0
5	1
6	1
7	0
8	0
9	1
10	2
11	0
12	0
13	1
14	2
15	3
16	0
17	0
18	0
19	2
20	3
21	6
22	0
23	0
24	0
25	2
26	3
27	6
28	11
29	0
30	0
31	0
32	0
33	3
34	6
35	11
36	22
37	0
38	0
39	0
40	0
41	3
42	6
43	11
44	22
45	42
46	0
47	0
48	0
49	0
50	0
51	6
52	11
53	22
54	42
55	84
56	0
57	0
58	0
59	0
60	0
61	6
62	11
63	22
64	42
65	84
66	165
67	0
68	0
69	0
70	0
71	0
72	0
73	11
74	22
75	42
76	84
77	165
78	330

[1, 0, 1, 0, 1, 1, 0, 0, 1, 2, 0, 0, 1, 2, 3, 0, 0, 0, 2, 3, 6, 0, 0, 0, 2, 3, 6, 11, 0, 0, 0, 0, 3, 6, 11, 22, 0, 0, 0, 0, 3, 6, 11, 22, 42, 0, 0, 0, 0, 0, 6, 11, 22, 42, 84, 0, 0, 0, 0, 0, 6, 11, 22, 42, 84, 165, 0, 0, 0, 0, 0, 0, 11, 22, 42, 84, 165, 330]

cp's OEIS Frontend

A167948 Triangle read by rows, A101688 * (an infinite lower triangular matrix with A002083 as the main diagonal and the rest zeros).

Table of values

List of values

n	a(n)
1	1
2	0
3	1
4	0
5	1
6	1
7	0
8	0
9	1
10	2
11	0
12	0
13	1
14	2
15	3
16	0
17	0
18	0
19	2
20	3
21	6
22	0
23	0
24	0
25	2
26	3
27	6
28	11
29	0
30	0
31	0
32	0
33	3
34	6
35	11
36	22
37	0
38	0
39	0
40	0
41	3
42	6
43	11
44	22
45	42
46	0
47	0
48	0
49	0
50	0
51	6
52	11
53	22
54	42
55	84
56	0
57	0
58	0
59	0
60	0
61	6
62	11
63	22
64	42
65	84
66	165
67	0
68	0
69	0
70	0
71	0
72	0
73	11
74	22
75	42
76	84
77	165
78	330

n	a(n)
1	1
2	0
3	1
4	0
5	1
6	1
7	0
8	0
9	1
10	2
11	0
12	0
13	1
14	2
15	3
16	0
17	0
18	0
19	2
20	3
21	6
22	0
23	0
24	0
25	2
26	3
27	6
28	11
29	0
30	0
31	0
32	0
33	3
34	6
35	11
36	22
37	0
38	0
39	0
40	0
41	3
42	6
43	11
44	22
45	42
46	0
47	0
48	0
49	0
50	0
51	6
52	11
53	22
54	42
55	84
56	0
57	0
58	0
59	0
60	0
61	6
62	11
63	22
64	42
65	84
66	165
67	0
68	0
69	0
70	0
71	0
72	0
73	11
74	22
75	42
76	84
77	165
78	330

n	a(n)
1	1
2	0
3	1
4	0
5	1
6	1
7	0
8	0
9	1
10	2
11	0
12	0
13	1
14	2
15	3
16	0
17	0
18	0
19	2
20	3
21	6
22	0
23	0
24	0
25	2
26	3
27	6
28	11
29	0
30	0
31	0
32	0
33	3
34	6
35	11
36	22
37	0
38	0
39	0
40	0
41	3
42	6
43	11
44	22
45	42
46	0
47	0
48	0
49	0
50	0
51	6
52	11
53	22
54	42
55	84
56	0
57	0
58	0
59	0
60	0
61	6
62	11
63	22
64	42
65	84
66	165
67	0
68	0
69	0
70	0
71	0
72	0
73	11
74	22
75	42
76	84
77	165
78	330