A293223 - cp's OEIS frontend

A293223 Restricted growth sequence transform of A293221, a product formed from the 1-digits present in the ternary expansion of proper divisors of n.

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

[1, 2, 2, 2, 2, 3, 2, 4, 3, 3, 2, 5, 2, 6, 7, 4, 2, 8, 2, 9, 4, 10, 2, 11, 3, 12, 8, 9, 2, 13, 2, 14, 8, 10, 4, 15, 2, 6, 16, 9, 2, 11, 2, 9, 17, 3, 2, 18, 6, 14, 8, 9, 2, 19, 8, 20, 4, 21, 2, 22, 2, 23, 16, 24, 16, 25, 2, 26, 7, 27, 2, 28, 2, 29, 16, 26, 30, 31, 2, 32, 19, 19, 2, 33, 8, 29, 34, 27, 2, 35, 14, 36, 37, 21, 4, 38, 2, 24, 39, 40, 2, 41, 2, 20, 42]

cp's OEIS Frontend

A293223 Restricted growth sequence transform of A293221, a product formed from the 1-digits present in the ternary expansion of proper divisors of n.

Table of values

List of values

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

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

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