A375038 - cp's OEIS frontend

A375038 Irregular triangle read by rows T(n,k), n >= 2, k >= 1, in which row n lists the nonmiddle divisors of n.

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

[2, 1, 3, 1, 4, 1, 5, 1, 6, 1, 7, 1, 4, 8, 1, 9, 1, 2, 5, 10, 1, 11, 1, 2, 6, 12, 1, 13, 1, 2, 7, 14, 1, 15, 1, 2, 8, 16, 1, 17, 1, 2, 6, 9, 18, 1, 19, 1, 2, 10, 20, 1, 3, 7, 21, 1, 2, 11, 22, 1, 23, 1, 2, 3, 8, 12, 24, 1, 25, 1, 2, 13, 26, 1, 3, 9, 27, 1, 2, 14, 28]

cp's OEIS Frontend

A375038 Irregular triangle read by rows T(n,k), n >= 2, k >= 1, in which row n lists the nonmiddle divisors of n.

Table of values

List of values

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

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

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