A328588 - cp's OEIS frontend

A328588 Numbers n for which A257993(A276086(A276086(n))) is larger than A257993(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	2
2	4
3	8
4	10
5	14
6	16
7	20
8	22
9	26
10	28
11	32
12	34
13	38
14	40
15	44
16	46
17	50
18	52
19	56
20	58
21	62
22	64
23	68
24	70
25	74
26	76
27	80
28	82
29	86
30	88
31	92
32	94
33	98
34	100
35	104
36	106
37	110
38	112
39	116
40	118
41	122
42	124
43	128
44	130
45	134
46	136
47	140
48	142
49	146
50	148
51	152
52	154
53	158
54	160
55	164
56	166
57	170
58	172
59	176
60	178
61	182
62	184
63	188
64	190
65	194
66	196
67	200
68	202
69	206
70	208
71	212
72	214
73	218
74	220
75	224
76	226
77	230
78	232
79	236
80	238
81	240
82	242

[2, 4, 8, 10, 14, 16, 20, 22, 26, 28, 32, 34, 38, 40, 44, 46, 50, 52, 56, 58, 62, 64, 68, 70, 74, 76, 80, 82, 86, 88, 92, 94, 98, 100, 104, 106, 110, 112, 116, 118, 122, 124, 128, 130, 134, 136, 140, 142, 146, 148, 152, 154, 158, 160, 164, 166, 170, 172, 176, 178, 182, 184, 188, 190, 194, 196, 200, 202, 206, 208, 212, 214, 218, 220, 224, 226, 230, 232, 236, 238, 240, 242]

cp's OEIS Frontend

A328588 Numbers n for which A257993(A276086(A276086(n))) is larger than A257993(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	2
2	4
3	8
4	10
5	14
6	16
7	20
8	22
9	26
10	28
11	32
12	34
13	38
14	40
15	44
16	46
17	50
18	52
19	56
20	58
21	62
22	64
23	68
24	70
25	74
26	76
27	80
28	82
29	86
30	88
31	92
32	94
33	98
34	100
35	104
36	106
37	110
38	112
39	116
40	118
41	122
42	124
43	128
44	130
45	134
46	136
47	140
48	142
49	146
50	148
51	152
52	154
53	158
54	160
55	164
56	166
57	170
58	172
59	176
60	178
61	182
62	184
63	188
64	190
65	194
66	196
67	200
68	202
69	206
70	208
71	212
72	214
73	218
74	220
75	224
76	226
77	230
78	232
79	236
80	238
81	240
82	242

n	a(n)
1	2
2	4
3	8
4	10
5	14
6	16
7	20
8	22
9	26
10	28
11	32
12	34
13	38
14	40
15	44
16	46
17	50
18	52
19	56
20	58
21	62
22	64
23	68
24	70
25	74
26	76
27	80
28	82
29	86
30	88
31	92
32	94
33	98
34	100
35	104
36	106
37	110
38	112
39	116
40	118
41	122
42	124
43	128
44	130
45	134
46	136
47	140
48	142
49	146
50	148
51	152
52	154
53	158
54	160
55	164
56	166
57	170
58	172
59	176
60	178
61	182
62	184
63	188
64	190
65	194
66	196
67	200
68	202
69	206
70	208
71	212
72	214
73	218
74	220
75	224
76	226
77	230
78	232
79	236
80	238
81	240
82	242

n	a(n)
1	2
2	4
3	8
4	10
5	14
6	16
7	20
8	22
9	26
10	28
11	32
12	34
13	38
14	40
15	44
16	46
17	50
18	52
19	56
20	58
21	62
22	64
23	68
24	70
25	74
26	76
27	80
28	82
29	86
30	88
31	92
32	94
33	98
34	100
35	104
36	106
37	110
38	112
39	116
40	118
41	122
42	124
43	128
44	130
45	134
46	136
47	140
48	142
49	146
50	148
51	152
52	154
53	158
54	160
55	164
56	166
57	170
58	172
59	176
60	178
61	182
62	184
63	188
64	190
65	194
66	196
67	200
68	202
69	206
70	208
71	212
72	214
73	218
74	220
75	224
76	226
77	230
78	232
79	236
80	238
81	240
82	242