A099204 - cp's OEIS frontend

A099204 A variation on Flavius's sieve (A000960): Start with the natural numbers; at the k-th sieving step, remove every p-th term of the sequence remaining after the (k-1)-st sieving step, where p is the k-th prime; iterate.

n	a(n)
1	1
2	3
3	7
4	9
5	15
6	19
7	25
8	31
9	33
10	37
11	45
12	51
13	61
14	63
15	67
16	69
17	81
18	85
19	97
20	105
21	109
22	111
23	123
24	129
25	135
26	141
27	145
28	151
29	159
30	169
31	183
32	189
33	195
34	201
35	211
36	213
37	219
38	225
39	229
40	241
41	261
42	265
43	273
44	277
45	289
46	291
47	307
48	315
49	319
50	321
51	325
52	339
53	351
54	355
55	361
56	375
57	381

[1, 3, 7, 9, 15, 19, 25, 31, 33, 37, 45, 51, 61, 63, 67, 69, 81, 85, 97, 105, 109, 111, 123, 129, 135, 141, 145, 151, 159, 169, 183, 189, 195, 201, 211, 213, 219, 225, 229, 241, 261, 265, 273, 277, 289, 291, 307, 315, 319, 321, 325, 339, 351, 355, 361, 375, 381]

cp's OEIS Frontend

A099204 A variation on Flavius's sieve (A000960): Start with the natural numbers; at the k-th sieving step, remove every p-th term of the sequence remaining after the (k-1)-st sieving step, where p is the k-th prime; iterate.

Table of values

List of values

n	a(n)
1	1
2	3
3	7
4	9
5	15
6	19
7	25
8	31
9	33
10	37
11	45
12	51
13	61
14	63
15	67
16	69
17	81
18	85
19	97
20	105
21	109
22	111
23	123
24	129
25	135
26	141
27	145
28	151
29	159
30	169
31	183
32	189
33	195
34	201
35	211
36	213
37	219
38	225
39	229
40	241
41	261
42	265
43	273
44	277
45	289
46	291
47	307
48	315
49	319
50	321
51	325
52	339
53	351
54	355
55	361
56	375
57	381

n	a(n)
1	1
2	3
3	7
4	9
5	15
6	19
7	25
8	31
9	33
10	37
11	45
12	51
13	61
14	63
15	67
16	69
17	81
18	85
19	97
20	105
21	109
22	111
23	123
24	129
25	135
26	141
27	145
28	151
29	159
30	169
31	183
32	189
33	195
34	201
35	211
36	213
37	219
38	225
39	229
40	241
41	261
42	265
43	273
44	277
45	289
46	291
47	307
48	315
49	319
50	321
51	325
52	339
53	351
54	355
55	361
56	375
57	381

n	a(n)
1	1
2	3
3	7
4	9
5	15
6	19
7	25
8	31
9	33
10	37
11	45
12	51
13	61
14	63
15	67
16	69
17	81
18	85
19	97
20	105
21	109
22	111
23	123
24	129
25	135
26	141
27	145
28	151
29	159
30	169
31	183
32	189
33	195
34	201
35	211
36	213
37	219
38	225
39	229
40	241
41	261
42	265
43	273
44	277
45	289
46	291
47	307
48	315
49	319
50	321
51	325
52	339
53	351
54	355
55	361
56	375
57	381