A056538 - cp's OEIS frontend

A056538 Irregular triangle read by rows: row n lists the divisors of n in decreasing order.

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

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

cp's OEIS Frontend

A056538 Irregular triangle read by rows: row n lists the divisors of n in decreasing order.

Table of values

List of values

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

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

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