A254669 - cp's OEIS frontend

A254669 Consider A098550(x_n)=2prime(n). Let a(n) be number of even numbers<=2prime(n) in A098550 in positions <=x_n.

n	a(n)
1	2
2	3
3	5
4	4
5	10
6	11
7	16
8	19
9	23
10	28
11	28
12	36
13	40
14	40
15	46
16	52
17	58
18	60
19	67
20	70
21	72
22	76
23	83
24	89
25	97
26	99
27	102
28	107
29	108
30	113
31	126
32	129
33	136
34	137
35	149
36	151
37	155
38	163
39	167
40	172
41	177
42	180
43	190
44	193
45	197
46	199
47	207
48	220
49	225
50	227
51	231
52	239
53	241
54	247
55	252
56	262
57	267
58	270

[2, 3, 5, 4, 10, 11, 16, 19, 23, 28, 28, 36, 40, 40, 46, 52, 58, 60, 67, 70, 72, 76, 83, 89, 97, 99, 102, 107, 108, 113, 126, 129, 136, 137, 149, 151, 155, 163, 167, 172, 177, 180, 190, 193, 197, 199, 207, 220, 225, 227, 231, 239, 241, 247, 252, 262, 267, 270]

cp's OEIS Frontend

A254669 Consider A098550(x_n)=2prime(n). Let a(n) be number of even numbers<=2prime(n) in A098550 in positions <=x_n.

Table of values

List of values

n	a(n)
1	2
2	3
3	5
4	4
5	10
6	11
7	16
8	19
9	23
10	28
11	28
12	36
13	40
14	40
15	46
16	52
17	58
18	60
19	67
20	70
21	72
22	76
23	83
24	89
25	97
26	99
27	102
28	107
29	108
30	113
31	126
32	129
33	136
34	137
35	149
36	151
37	155
38	163
39	167
40	172
41	177
42	180
43	190
44	193
45	197
46	199
47	207
48	220
49	225
50	227
51	231
52	239
53	241
54	247
55	252
56	262
57	267
58	270

n	a(n)
1	2
2	3
3	5
4	4
5	10
6	11
7	16
8	19
9	23
10	28
11	28
12	36
13	40
14	40
15	46
16	52
17	58
18	60
19	67
20	70
21	72
22	76
23	83
24	89
25	97
26	99
27	102
28	107
29	108
30	113
31	126
32	129
33	136
34	137
35	149
36	151
37	155
38	163
39	167
40	172
41	177
42	180
43	190
44	193
45	197
46	199
47	207
48	220
49	225
50	227
51	231
52	239
53	241
54	247
55	252
56	262
57	267
58	270

cp's OEIS Frontend

A254669 Consider A098550(x_n)=2*prime(n). Let a(n) be number of even numbers<=2*prime(n) in A098550 in positions <=x_n.

Table of values

List of values

A254669 Consider A098550(x_n)=2prime(n). Let a(n) be number of even numbers<=2prime(n) in A098550 in positions <=x_n.

n	a(n)
1	2
2	3
3	5
4	4
5	10
6	11
7	16
8	19
9	23
10	28
11	28
12	36
13	40
14	40
15	46
16	52
17	58
18	60
19	67
20	70
21	72
22	76
23	83
24	89
25	97
26	99
27	102
28	107
29	108
30	113
31	126
32	129
33	136
34	137
35	149
36	151
37	155
38	163
39	167
40	172
41	177
42	180
43	190
44	193
45	197
46	199
47	207
48	220
49	225
50	227
51	231
52	239
53	241
54	247
55	252
56	262
57	267
58	270