A328585 - cp's OEIS frontend

A328585 Numbers n for which A257993(n) is equal to A257993(A276086(A276086(n))), where A276086 converts the primorial base expansion of n into its prime product form, and A257993 returns the index of the least prime not present in its argument.

n	a(n)
1	1
2	3
3	5
4	6
5	7
6	9
7	11
8	13
9	15
10	17
11	18
12	19
13	21
14	23
15	25
16	27
17	29
18	31
19	33
20	35
21	36
22	37
23	39
24	41
25	43
26	45
27	47
28	48
29	49
30	51
31	53
32	55
33	57
34	59
35	61
36	63
37	65
38	66
39	67
40	69
41	71
42	73
43	75
44	77
45	78
46	79
47	81
48	83
49	85
50	87
51	89
52	91
53	93
54	95
55	96
56	97
57	99
58	101
59	103
60	105
61	107
62	108
63	109
64	111
65	113
66	115
67	117
68	119
69	121
70	123
71	125
72	126
73	127
74	129
75	131
76	133
77	135
78	137
79	138
80	139

[1, 3, 5, 6, 7, 9, 11, 13, 15, 17, 18, 19, 21, 23, 25, 27, 29, 31, 33, 35, 36, 37, 39, 41, 43, 45, 47, 48, 49, 51, 53, 55, 57, 59, 61, 63, 65, 66, 67, 69, 71, 73, 75, 77, 78, 79, 81, 83, 85, 87, 89, 91, 93, 95, 96, 97, 99, 101, 103, 105, 107, 108, 109, 111, 113, 115, 117, 119, 121, 123, 125, 126, 127, 129, 131, 133, 135, 137, 138, 139]

cp's OEIS Frontend

A328585 Numbers n for which A257993(n) is equal to A257993(A276086(A276086(n))), where A276086 converts the primorial base expansion of n into its prime product form, and A257993 returns the index of the least prime not present in its argument.

Table of values

List of values

n	a(n)
1	1
2	3
3	5
4	6
5	7
6	9
7	11
8	13
9	15
10	17
11	18
12	19
13	21
14	23
15	25
16	27
17	29
18	31
19	33
20	35
21	36
22	37
23	39
24	41
25	43
26	45
27	47
28	48
29	49
30	51
31	53
32	55
33	57
34	59
35	61
36	63
37	65
38	66
39	67
40	69
41	71
42	73
43	75
44	77
45	78
46	79
47	81
48	83
49	85
50	87
51	89
52	91
53	93
54	95
55	96
56	97
57	99
58	101
59	103
60	105
61	107
62	108
63	109
64	111
65	113
66	115
67	117
68	119
69	121
70	123
71	125
72	126
73	127
74	129
75	131
76	133
77	135
78	137
79	138
80	139

n	a(n)
1	1
2	3
3	5
4	6
5	7
6	9
7	11
8	13
9	15
10	17
11	18
12	19
13	21
14	23
15	25
16	27
17	29
18	31
19	33
20	35
21	36
22	37
23	39
24	41
25	43
26	45
27	47
28	48
29	49
30	51
31	53
32	55
33	57
34	59
35	61
36	63
37	65
38	66
39	67
40	69
41	71
42	73
43	75
44	77
45	78
46	79
47	81
48	83
49	85
50	87
51	89
52	91
53	93
54	95
55	96
56	97
57	99
58	101
59	103
60	105
61	107
62	108
63	109
64	111
65	113
66	115
67	117
68	119
69	121
70	123
71	125
72	126
73	127
74	129
75	131
76	133
77	135
78	137
79	138
80	139

n	a(n)
1	1
2	3
3	5
4	6
5	7
6	9
7	11
8	13
9	15
10	17
11	18
12	19
13	21
14	23
15	25
16	27
17	29
18	31
19	33
20	35
21	36
22	37
23	39
24	41
25	43
26	45
27	47
28	48
29	49
30	51
31	53
32	55
33	57
34	59
35	61
36	63
37	65
38	66
39	67
40	69
41	71
42	73
43	75
44	77
45	78
46	79
47	81
48	83
49	85
50	87
51	89
52	91
53	93
54	95
55	96
56	97
57	99
58	101
59	103
60	105
61	107
62	108
63	109
64	111
65	113
66	115
67	117
68	119
69	121
70	123
71	125
72	126
73	127
74	129
75	131
76	133
77	135
78	137
79	138
80	139