A299761 - cp's OEIS frontend

A299761 Irregular triangle read by rows: T(n,k), n >= 1, k >= 1, in which row n lists the middle divisors of n, or 0 if there are no middle divisors of n.

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

[1, 1, 0, 2, 0, 2, 3, 0, 2, 3, 0, 0, 3, 4, 0, 0, 3, 5, 4, 0, 3, 0, 4, 5, 0, 0, 0, 4, 6, 5, 0, 0, 4, 7, 0, 5, 6, 0, 4, 0, 0, 5, 7, 6, 0, 0, 0, 5, 8, 0, 6, 7, 0, 0, 5, 9, 0, 0, 6, 8, 7, 5, 0, 0, 0, 6, 9, 0, 7, 8, 0, 0, 0, 6, 10, 0, 0, 7, 9, 8, 0, 6, 11, 0, 0, 0, 7, 10, 0, 6, 8, 9, 0, 0, 0, 0, 7, 11, 0, 0, 8, 10]

cp's OEIS Frontend

A299761 Irregular triangle read by rows: T(n,k), n >= 1, k >= 1, in which row n lists the middle divisors of n, or 0 if there are no middle divisors of n.

Table of values

List of values

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

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

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