A353284 - cp's OEIS frontend

A353284 Consider the number of divisors tau(k) of every composite k between prime p >= 3 and the next prime; if the largest tau(k) is a prime power, then p is in the sequence.

n	a(n)
1	3
2	5
3	7
4	13
5	23
6	29
7	31
8	37
9	41
10	53
11	61
12	67
13	73
14	97
15	101
16	103
17	113
18	127
19	137
20	163
21	167
22	181
23	193
24	199
25	211
26	229
27	241
28	263
29	269
30	277
31	281
32	311
33	317
34	353
35	373
36	383
37	401
38	421
39	433
40	439
41	461
42	509
43	541
44	547
45	569
46	593
47	601
48	613
49	617
50	631
51	641
52	677
53	701
54	709
55	727
56	743
57	757
58	769
59	821
60	839
61	857
62	887

[3, 5, 7, 13, 23, 29, 31, 37, 41, 53, 61, 67, 73, 97, 101, 103, 113, 127, 137, 163, 167, 181, 193, 199, 211, 229, 241, 263, 269, 277, 281, 311, 317, 353, 373, 383, 401, 421, 433, 439, 461, 509, 541, 547, 569, 593, 601, 613, 617, 631, 641, 677, 701, 709, 727, 743, 757, 769, 821, 839, 857, 887]

cp's OEIS Frontend

A353284 Consider the number of divisors tau(k) of every composite k between prime p >= 3 and the next prime; if the largest tau(k) is a prime power, then p is in the sequence.

Table of values

List of values

n	a(n)
1	3
2	5
3	7
4	13
5	23
6	29
7	31
8	37
9	41
10	53
11	61
12	67
13	73
14	97
15	101
16	103
17	113
18	127
19	137
20	163
21	167
22	181
23	193
24	199
25	211
26	229
27	241
28	263
29	269
30	277
31	281
32	311
33	317
34	353
35	373
36	383
37	401
38	421
39	433
40	439
41	461
42	509
43	541
44	547
45	569
46	593
47	601
48	613
49	617
50	631
51	641
52	677
53	701
54	709
55	727
56	743
57	757
58	769
59	821
60	839
61	857
62	887

n	a(n)
1	3
2	5
3	7
4	13
5	23
6	29
7	31
8	37
9	41
10	53
11	61
12	67
13	73
14	97
15	101
16	103
17	113
18	127
19	137
20	163
21	167
22	181
23	193
24	199
25	211
26	229
27	241
28	263
29	269
30	277
31	281
32	311
33	317
34	353
35	373
36	383
37	401
38	421
39	433
40	439
41	461
42	509
43	541
44	547
45	569
46	593
47	601
48	613
49	617
50	631
51	641
52	677
53	701
54	709
55	727
56	743
57	757
58	769
59	821
60	839
61	857
62	887

n	a(n)
1	3
2	5
3	7
4	13
5	23
6	29
7	31
8	37
9	41
10	53
11	61
12	67
13	73
14	97
15	101
16	103
17	113
18	127
19	137
20	163
21	167
22	181
23	193
24	199
25	211
26	229
27	241
28	263
29	269
30	277
31	281
32	311
33	317
34	353
35	373
36	383
37	401
38	421
39	433
40	439
41	461
42	509
43	541
44	547
45	569
46	593
47	601
48	613
49	617
50	631
51	641
52	677
53	701
54	709
55	727
56	743
57	757
58	769
59	821
60	839
61	857
62	887