A222266 - cp's OEIS frontend

A222266 Irregular triangle which lists the bi-unitary divisors of n in row n.

n	a(n)
1	1
2	1
3	2
4	1
5	3
6	1
7	4
8	1
9	5
10	1
11	2
12	3
13	6
14	1
15	7
16	1
17	2
18	4
19	8
20	1
21	9
22	1
23	2
24	5
25	10
26	1
27	11
28	1
29	3
30	4
31	12
32	1
33	13
34	1
35	2
36	7
37	14
38	1
39	3
40	5
41	15
42	1
43	2
44	8
45	16
46	1
47	17
48	1
49	2
50	9
51	18
52	1
53	19
54	1
55	4
56	5
57	20
58	1
59	3
60	7
61	21
62	1
63	2
64	11
65	22
66	1
67	23
68	1
69	2
70	3
71	4
72	6
73	8
74	12
75	24
76	1
77	25
78	1
79	2
80	13
81	26
82	1
83	3
84	9
85	27
86	1
87	4
88	7
89	28
90	1
91	29
92	1
93	2
94	3
95	5
96	6
97	10
98	15
99	30
100	1
101	31
102	1
103	2
104	4
105	8
106	16
107	32
108	1
109	3
110	11
111	33
112	1
113	2
114	17
115	34
116	1
117	5
118	7
119	35

[1, 1, 2, 1, 3, 1, 4, 1, 5, 1, 2, 3, 6, 1, 7, 1, 2, 4, 8, 1, 9, 1, 2, 5, 10, 1, 11, 1, 3, 4, 12, 1, 13, 1, 2, 7, 14, 1, 3, 5, 15, 1, 2, 8, 16, 1, 17, 1, 2, 9, 18, 1, 19, 1, 4, 5, 20, 1, 3, 7, 21, 1, 2, 11, 22, 1, 23, 1, 2, 3, 4, 6, 8, 12, 24, 1, 25, 1, 2, 13, 26, 1, 3, 9, 27, 1, 4, 7, 28, 1, 29, 1, 2, 3, 5, 6, 10, 15, 30, 1, 31, 1, 2, 4, 8, 16, 32, 1, 3, 11, 33, 1, 2, 17, 34, 1, 5, 7, 35]

cp's OEIS Frontend

A222266 Irregular triangle which lists the bi-unitary divisors of n in row n.

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	1
5	3
6	1
7	4
8	1
9	5
10	1
11	2
12	3
13	6
14	1
15	7
16	1
17	2
18	4
19	8
20	1
21	9
22	1
23	2
24	5
25	10
26	1
27	11
28	1
29	3
30	4
31	12
32	1
33	13
34	1
35	2
36	7
37	14
38	1
39	3
40	5
41	15
42	1
43	2
44	8
45	16
46	1
47	17
48	1
49	2
50	9
51	18
52	1
53	19
54	1
55	4
56	5
57	20
58	1
59	3
60	7
61	21
62	1
63	2
64	11
65	22
66	1
67	23
68	1
69	2
70	3
71	4
72	6
73	8
74	12
75	24
76	1
77	25
78	1
79	2
80	13
81	26
82	1
83	3
84	9
85	27
86	1
87	4
88	7
89	28
90	1
91	29
92	1
93	2
94	3
95	5
96	6
97	10
98	15
99	30
100	1
101	31
102	1
103	2
104	4
105	8
106	16
107	32
108	1
109	3
110	11
111	33
112	1
113	2
114	17
115	34
116	1
117	5
118	7
119	35

n	a(n)
1	1
2	1
3	2
4	1
5	3
6	1
7	4
8	1
9	5
10	1
11	2
12	3
13	6
14	1
15	7
16	1
17	2
18	4
19	8
20	1
21	9
22	1
23	2
24	5
25	10
26	1
27	11
28	1
29	3
30	4
31	12
32	1
33	13
34	1
35	2
36	7
37	14
38	1
39	3
40	5
41	15
42	1
43	2
44	8
45	16
46	1
47	17
48	1
49	2
50	9
51	18
52	1
53	19
54	1
55	4
56	5
57	20
58	1
59	3
60	7
61	21
62	1
63	2
64	11
65	22
66	1
67	23
68	1
69	2
70	3
71	4
72	6
73	8
74	12
75	24
76	1
77	25
78	1
79	2
80	13
81	26
82	1
83	3
84	9
85	27
86	1
87	4
88	7
89	28
90	1
91	29
92	1
93	2
94	3
95	5
96	6
97	10
98	15
99	30
100	1
101	31
102	1
103	2
104	4
105	8
106	16
107	32
108	1
109	3
110	11
111	33
112	1
113	2
114	17
115	34
116	1
117	5
118	7
119	35

n	a(n)
1	1
2	1
3	2
4	1
5	3
6	1
7	4
8	1
9	5
10	1
11	2
12	3
13	6
14	1
15	7
16	1
17	2
18	4
19	8
20	1
21	9
22	1
23	2
24	5
25	10
26	1
27	11
28	1
29	3
30	4
31	12
32	1
33	13
34	1
35	2
36	7
37	14
38	1
39	3
40	5
41	15
42	1
43	2
44	8
45	16
46	1
47	17
48	1
49	2
50	9
51	18
52	1
53	19
54	1
55	4
56	5
57	20
58	1
59	3
60	7
61	21
62	1
63	2
64	11
65	22
66	1
67	23
68	1
69	2
70	3
71	4
72	6
73	8
74	12
75	24
76	1
77	25
78	1
79	2
80	13
81	26
82	1
83	3
84	9
85	27
86	1
87	4
88	7
89	28
90	1
91	29
92	1
93	2
94	3
95	5
96	6
97	10
98	15
99	30
100	1
101	31
102	1
103	2
104	4
105	8
106	16
107	32
108	1
109	3
110	11
111	33
112	1
113	2
114	17
115	34
116	1
117	5
118	7
119	35