A176891 - cp's OEIS frontend

A176891 Triangle T(n,k) = k if k and k|n, = 0 otherwise, 1 <= k <= n; read by rows.

n	a(n)
1	1
2	1
3	0
4	1
5	0
6	0
7	1
8	2
9	0
10	0
11	1
12	0
13	0
14	0
15	0
16	1
17	2
18	3
19	0
20	0
21	0
22	1
23	0
24	0
25	0
26	0
27	0
28	0
29	1
30	2
31	0
32	4
33	0
34	0
35	0
36	0
37	1
38	0
39	3
40	0
41	0
42	0
43	0
44	0
45	0
46	1
47	2
48	0
49	0
50	5
51	0
52	0
53	0
54	0
55	0
56	1
57	0
58	0
59	0
60	0
61	0
62	0
63	0
64	0
65	0
66	0
67	1
68	2
69	3
70	4
71	0
72	6
73	0
74	0
75	0
76	0
77	0
78	0
79	1
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	0
92	1
93	2
94	0
95	0
96	0
97	0
98	7
99	0
100	0
101	0
102	0
103	0
104	0
105	0

[1, 1, 0, 1, 0, 0, 1, 2, 0, 0, 1, 0, 0, 0, 0, 1, 2, 3, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 2, 0, 4, 0, 0, 0, 0, 1, 0, 3, 0, 0, 0, 0, 0, 0, 1, 2, 0, 0, 5, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 0, 6, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0]

cp's OEIS Frontend

A176891 Triangle T(n,k) = k if k and k|n, = 0 otherwise, 1 <= k <= n; read by rows.

Table of values

List of values

n	a(n)
1	1
2	1
3	0
4	1
5	0
6	0
7	1
8	2
9	0
10	0
11	1
12	0
13	0
14	0
15	0
16	1
17	2
18	3
19	0
20	0
21	0
22	1
23	0
24	0
25	0
26	0
27	0
28	0
29	1
30	2
31	0
32	4
33	0
34	0
35	0
36	0
37	1
38	0
39	3
40	0
41	0
42	0
43	0
44	0
45	0
46	1
47	2
48	0
49	0
50	5
51	0
52	0
53	0
54	0
55	0
56	1
57	0
58	0
59	0
60	0
61	0
62	0
63	0
64	0
65	0
66	0
67	1
68	2
69	3
70	4
71	0
72	6
73	0
74	0
75	0
76	0
77	0
78	0
79	1
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	0
92	1
93	2
94	0
95	0
96	0
97	0
98	7
99	0
100	0
101	0
102	0
103	0
104	0
105	0

n	a(n)
1	1
2	1
3	0
4	1
5	0
6	0
7	1
8	2
9	0
10	0
11	1
12	0
13	0
14	0
15	0
16	1
17	2
18	3
19	0
20	0
21	0
22	1
23	0
24	0
25	0
26	0
27	0
28	0
29	1
30	2
31	0
32	4
33	0
34	0
35	0
36	0
37	1
38	0
39	3
40	0
41	0
42	0
43	0
44	0
45	0
46	1
47	2
48	0
49	0
50	5
51	0
52	0
53	0
54	0
55	0
56	1
57	0
58	0
59	0
60	0
61	0
62	0
63	0
64	0
65	0
66	0
67	1
68	2
69	3
70	4
71	0
72	6
73	0
74	0
75	0
76	0
77	0
78	0
79	1
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	0
92	1
93	2
94	0
95	0
96	0
97	0
98	7
99	0
100	0
101	0
102	0
103	0
104	0
105	0

n	a(n)
1	1
2	1
3	0
4	1
5	0
6	0
7	1
8	2
9	0
10	0
11	1
12	0
13	0
14	0
15	0
16	1
17	2
18	3
19	0
20	0
21	0
22	1
23	0
24	0
25	0
26	0
27	0
28	0
29	1
30	2
31	0
32	4
33	0
34	0
35	0
36	0
37	1
38	0
39	3
40	0
41	0
42	0
43	0
44	0
45	0
46	1
47	2
48	0
49	0
50	5
51	0
52	0
53	0
54	0
55	0
56	1
57	0
58	0
59	0
60	0
61	0
62	0
63	0
64	0
65	0
66	0
67	1
68	2
69	3
70	4
71	0
72	6
73	0
74	0
75	0
76	0
77	0
78	0
79	1
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	0
92	1
93	2
94	0
95	0
96	0
97	0
98	7
99	0
100	0
101	0
102	0
103	0
104	0
105	0