A354606 - cp's OEIS frontend

A354606 a(1) = 1; for n > 1, a(n) is number of terms in the first n-1 terms of the sequence that have the same number of divisors as a(n-1).

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

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

cp's OEIS Frontend

A354606 a(1) = 1; for n > 1, a(n) is number of terms in the first n-1 terms of the sequence that have the same number of divisors as a(n-1).

Table of values

List of values

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

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

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