A328237 - cp's OEIS frontend

A328237 Quotient A003415(n+k)/A003415(n) for the least k > 0 for which such a quotient is an integer. Here A003415(x) is the arithmetic derivative of x.

n	a(n)
2	1
3	4
4	3
5	5
6	2
7	12
8	2
9	4
10	3
11	16
12	2
13	9
14	3
15	4
16	1
17	21
18	1
19	24
20	2
21	1
22	3
23	44
24	4
25	8
26	4
27	3
28	6
29	31
30	1
31	80
32	1
33	8
34	8
35	5
36	4
37	21
38	3
39	3
40	4
41	41
42	3
43	48
44	4
45	4
46	3
47	112
48	4
49	4
50	1
51	4
52	8
53	81
54	2
55	12
56	1
57	8
58	4
59	92
60	4
61	33
62	5
63	9
64	2
65	4
66	1
67	72
68	3
69	6
70	4
71	156
72	4
73	39
74	5
75	1
76	3
77	6
78	1
79	176
80	1
81	2
82	3
83	124
84	2
85	1
86	12
87	3
88	1
89	123
90	1
91	7
92	4
93	8
94	3
95	9
96	1
97	77
98	3
99	1
100	4

[1, 4, 3, 5, 2, 12, 2, 4, 3, 16, 2, 9, 3, 4, 1, 21, 1, 24, 2, 1, 3, 44, 4, 8, 4, 3, 6, 31, 1, 80, 1, 8, 8, 5, 4, 21, 3, 3, 4, 41, 3, 48, 4, 4, 3, 112, 4, 4, 1, 4, 8, 81, 2, 12, 1, 8, 4, 92, 4, 33, 5, 9, 2, 4, 1, 72, 3, 6, 4, 156, 4, 39, 5, 1, 3, 6, 1, 176, 1, 2, 3, 124, 2, 1, 12, 3, 1, 123, 1, 7, 4, 8, 3, 9, 1, 77, 3, 1, 4]

cp's OEIS Frontend

A328237 Quotient A003415(n+k)/A003415(n) for the least k > 0 for which such a quotient is an integer. Here A003415(x) is the arithmetic derivative of x.

Table of values

List of values

n	a(n)
2	1
3	4
4	3
5	5
6	2
7	12
8	2
9	4
10	3
11	16
12	2
13	9
14	3
15	4
16	1
17	21
18	1
19	24
20	2
21	1
22	3
23	44
24	4
25	8
26	4
27	3
28	6
29	31
30	1
31	80
32	1
33	8
34	8
35	5
36	4
37	21
38	3
39	3
40	4
41	41
42	3
43	48
44	4
45	4
46	3
47	112
48	4
49	4
50	1
51	4
52	8
53	81
54	2
55	12
56	1
57	8
58	4
59	92
60	4
61	33
62	5
63	9
64	2
65	4
66	1
67	72
68	3
69	6
70	4
71	156
72	4
73	39
74	5
75	1
76	3
77	6
78	1
79	176
80	1
81	2
82	3
83	124
84	2
85	1
86	12
87	3
88	1
89	123
90	1
91	7
92	4
93	8
94	3
95	9
96	1
97	77
98	3
99	1
100	4

n	a(n)
2	1
3	4
4	3
5	5
6	2
7	12
8	2
9	4
10	3
11	16
12	2
13	9
14	3
15	4
16	1
17	21
18	1
19	24
20	2
21	1
22	3
23	44
24	4
25	8
26	4
27	3
28	6
29	31
30	1
31	80
32	1
33	8
34	8
35	5
36	4
37	21
38	3
39	3
40	4
41	41
42	3
43	48
44	4
45	4
46	3
47	112
48	4
49	4
50	1
51	4
52	8
53	81
54	2
55	12
56	1
57	8
58	4
59	92
60	4
61	33
62	5
63	9
64	2
65	4
66	1
67	72
68	3
69	6
70	4
71	156
72	4
73	39
74	5
75	1
76	3
77	6
78	1
79	176
80	1
81	2
82	3
83	124
84	2
85	1
86	12
87	3
88	1
89	123
90	1
91	7
92	4
93	8
94	3
95	9
96	1
97	77
98	3
99	1
100	4

n	a(n)
2	1
3	4
4	3
5	5
6	2
7	12
8	2
9	4
10	3
11	16
12	2
13	9
14	3
15	4
16	1
17	21
18	1
19	24
20	2
21	1
22	3
23	44
24	4
25	8
26	4
27	3
28	6
29	31
30	1
31	80
32	1
33	8
34	8
35	5
36	4
37	21
38	3
39	3
40	4
41	41
42	3
43	48
44	4
45	4
46	3
47	112
48	4
49	4
50	1
51	4
52	8
53	81
54	2
55	12
56	1
57	8
58	4
59	92
60	4
61	33
62	5
63	9
64	2
65	4
66	1
67	72
68	3
69	6
70	4
71	156
72	4
73	39
74	5
75	1
76	3
77	6
78	1
79	176
80	1
81	2
82	3
83	124
84	2
85	1
86	12
87	3
88	1
89	123
90	1
91	7
92	4
93	8
94	3
95	9
96	1
97	77
98	3
99	1
100	4