A319849 - cp's OEIS frontend

A319849 Irregular triangle read by rows in which row n lists the even divisors of n in increasing order together with the odd divisors of n in increasing order.

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

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

cp's OEIS Frontend

A319849 Irregular triangle read by rows in which row n lists the even divisors of n in increasing order together with the odd divisors of n in increasing order.

Table of values

List of values

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

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

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