A379374 - cp's OEIS frontend

A379374 Irregular triangle read by rows in which row n lists the divisors of n except the divisors "e" described in A005279.

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

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

cp's OEIS Frontend

A379374 Irregular triangle read by rows in which row n lists the divisors of n except the divisors "e" described in A005279.

Table of values

List of values

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

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

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