A328242 - cp's OEIS frontend

A328242 Numbers k such that A003415(A276086(k)) is a squarefree number, where A003415 is the arithmetic derivative, and A276086 is the primorial base exp-function.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	9
9	10
10	11
11	12
12	14
13	15
14	17
15	30
16	32
17	33
18	34
19	35
20	37
21	38
22	39
23	40
24	41
25	42
26	43
27	46
28	47
29	60
30	61
31	62
32	63
33	65
34	66
35	67
36	68
37	69
38	71
39	73
40	74
41	75
42	76
43	77
44	210
45	211
46	212
47	213
48	215
49	217
50	218
51	219
52	220
53	221
54	223
55	225
56	226
57	227
58	241
59	242
60	243
61	245
62	246
63	247
64	248
65	249
66	250
67	251
68	254
69	255
70	256
71	257
72	270
73	273
74	274
75	275
76	276
77	277

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 17, 30, 32, 33, 34, 35, 37, 38, 39, 40, 41, 42, 43, 46, 47, 60, 61, 62, 63, 65, 66, 67, 68, 69, 71, 73, 74, 75, 76, 77, 210, 211, 212, 213, 215, 217, 218, 219, 220, 221, 223, 225, 226, 227, 241, 242, 243, 245, 246, 247, 248, 249, 250, 251, 254, 255, 256, 257, 270, 273, 274, 275, 276, 277]

cp's OEIS Frontend

A328242 Numbers k such that A003415(A276086(k)) is a squarefree number, where A003415 is the arithmetic derivative, and A276086 is the primorial base exp-function.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	9
9	10
10	11
11	12
12	14
13	15
14	17
15	30
16	32
17	33
18	34
19	35
20	37
21	38
22	39
23	40
24	41
25	42
26	43
27	46
28	47
29	60
30	61
31	62
32	63
33	65
34	66
35	67
36	68
37	69
38	71
39	73
40	74
41	75
42	76
43	77
44	210
45	211
46	212
47	213
48	215
49	217
50	218
51	219
52	220
53	221
54	223
55	225
56	226
57	227
58	241
59	242
60	243
61	245
62	246
63	247
64	248
65	249
66	250
67	251
68	254
69	255
70	256
71	257
72	270
73	273
74	274
75	275
76	276
77	277

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	9
9	10
10	11
11	12
12	14
13	15
14	17
15	30
16	32
17	33
18	34
19	35
20	37
21	38
22	39
23	40
24	41
25	42
26	43
27	46
28	47
29	60
30	61
31	62
32	63
33	65
34	66
35	67
36	68
37	69
38	71
39	73
40	74
41	75
42	76
43	77
44	210
45	211
46	212
47	213
48	215
49	217
50	218
51	219
52	220
53	221
54	223
55	225
56	226
57	227
58	241
59	242
60	243
61	245
62	246
63	247
64	248
65	249
66	250
67	251
68	254
69	255
70	256
71	257
72	270
73	273
74	274
75	275
76	276
77	277

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	9
9	10
10	11
11	12
12	14
13	15
14	17
15	30
16	32
17	33
18	34
19	35
20	37
21	38
22	39
23	40
24	41
25	42
26	43
27	46
28	47
29	60
30	61
31	62
32	63
33	65
34	66
35	67
36	68
37	69
38	71
39	73
40	74
41	75
42	76
43	77
44	210
45	211
46	212
47	213
48	215
49	217
50	218
51	219
52	220
53	221
54	223
55	225
56	226
57	227
58	241
59	242
60	243
61	245
62	246
63	247
64	248
65	249
66	250
67	251
68	254
69	255
70	256
71	257
72	270
73	273
74	274
75	275
76	276
77	277