A328238 - cp's OEIS frontend

A328238 Quotient A003415(n*m)/A003415(n) for the least m > 1 for which such a quotient is an integer. Here A003415(x) is the arithmetic derivative of x.

n	a(n)
2	4
3	5
4	3
5	7
6	12
7	9
8	16
9	10
10	20
11	13
12	7
13	15
14	28
15	42
16	6
17	19
18	16
19	21
20	18
21	42
22	44
23	25
24	48
25	14
26	52
27	3
28	26
29	31
30	60
31	33
32	8
33	66
34	68
35	43
36	9
37	39
38	56
39	51
40	80
41	43
42	84
43	45
44	19
45	37
46	92
47	49
48	13
49	18
50	24
51	236
52	46
53	55
54	16
55	67
56	112
57	138
58	88
59	61
60	116
61	63
62	124
63	124
64	12
65	130
66	132
67	69
68	82
69	138
70	140
71	73
72	28
73	75
74	119
75	84
76	108
77	142
78	156
79	81
80	44
81	7
82	164

[4, 5, 3, 7, 12, 9, 16, 10, 20, 13, 7, 15, 28, 42, 6, 19, 16, 21, 18, 42, 44, 25, 48, 14, 52, 3, 26, 31, 60, 33, 8, 66, 68, 43, 9, 39, 56, 51, 80, 43, 84, 45, 19, 37, 92, 49, 13, 18, 24, 236, 46, 55, 16, 67, 112, 138, 88, 61, 116, 63, 124, 124, 12, 130, 132, 69, 82, 138, 140, 73, 28, 75, 119, 84, 108, 142, 156, 81, 44, 7, 164]

cp's OEIS Frontend

A328238 Quotient A003415(n*m)/A003415(n) for the least m > 1 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	4
3	5
4	3
5	7
6	12
7	9
8	16
9	10
10	20
11	13
12	7
13	15
14	28
15	42
16	6
17	19
18	16
19	21
20	18
21	42
22	44
23	25
24	48
25	14
26	52
27	3
28	26
29	31
30	60
31	33
32	8
33	66
34	68
35	43
36	9
37	39
38	56
39	51
40	80
41	43
42	84
43	45
44	19
45	37
46	92
47	49
48	13
49	18
50	24
51	236
52	46
53	55
54	16
55	67
56	112
57	138
58	88
59	61
60	116
61	63
62	124
63	124
64	12
65	130
66	132
67	69
68	82
69	138
70	140
71	73
72	28
73	75
74	119
75	84
76	108
77	142
78	156
79	81
80	44
81	7
82	164

n	a(n)
2	4
3	5
4	3
5	7
6	12
7	9
8	16
9	10
10	20
11	13
12	7
13	15
14	28
15	42
16	6
17	19
18	16
19	21
20	18
21	42
22	44
23	25
24	48
25	14
26	52
27	3
28	26
29	31
30	60
31	33
32	8
33	66
34	68
35	43
36	9
37	39
38	56
39	51
40	80
41	43
42	84
43	45
44	19
45	37
46	92
47	49
48	13
49	18
50	24
51	236
52	46
53	55
54	16
55	67
56	112
57	138
58	88
59	61
60	116
61	63
62	124
63	124
64	12
65	130
66	132
67	69
68	82
69	138
70	140
71	73
72	28
73	75
74	119
75	84
76	108
77	142
78	156
79	81
80	44
81	7
82	164

n	a(n)
2	4
3	5
4	3
5	7
6	12
7	9
8	16
9	10
10	20
11	13
12	7
13	15
14	28
15	42
16	6
17	19
18	16
19	21
20	18
21	42
22	44
23	25
24	48
25	14
26	52
27	3
28	26
29	31
30	60
31	33
32	8
33	66
34	68
35	43
36	9
37	39
38	56
39	51
40	80
41	43
42	84
43	45
44	19
45	37
46	92
47	49
48	13
49	18
50	24
51	236
52	46
53	55
54	16
55	67
56	112
57	138
58	88
59	61
60	116
61	63
62	124
63	124
64	12
65	130
66	132
67	69
68	82
69	138
70	140
71	73
72	28
73	75
74	119
75	84
76	108
77	142
78	156
79	81
80	44
81	7
82	164