A273457 - cp's OEIS frontend

A273457 Even numbers 2n that do not have a Goldbach partition 2n = p + q (p < q; p, q prime) satisfying sqrt(n) < p <= sqrt(2n).

n	a(n)
1	2
2	4
3	6
4	8
5	12
6	18
7	20
8	22
9	24
10	26
11	30
12	32
13	38
14	40
15	44
16	52
17	56
18	58
19	62
20	64
21	70
22	72
23	76
24	82
25	84
26	88
27	92
28	94
29	98
30	100
31	102
32	104
33	106
34	108
35	110
36	112
37	114
38	116
39	118
40	120
41	122
42	126
43	128
44	130
45	132
46	134
47	136
48	140
49	144
50	146
51	152
52	154
53	156
54	158
55	164
56	166
57	172
58	182
59	188
60	196
61	198
62	200
63	214

[2, 4, 6, 8, 12, 18, 20, 22, 24, 26, 30, 32, 38, 40, 44, 52, 56, 58, 62, 64, 70, 72, 76, 82, 84, 88, 92, 94, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 126, 128, 130, 132, 134, 136, 140, 144, 146, 152, 154, 156, 158, 164, 166, 172, 182, 188, 196, 198, 200, 214]

cp's OEIS Frontend

A273457 Even numbers 2n that do not have a Goldbach partition 2n = p + q (p < q; p, q prime) satisfying sqrt(n) < p <= sqrt(2n).

Table of values

List of values

n	a(n)
1	2
2	4
3	6
4	8
5	12
6	18
7	20
8	22
9	24
10	26
11	30
12	32
13	38
14	40
15	44
16	52
17	56
18	58
19	62
20	64
21	70
22	72
23	76
24	82
25	84
26	88
27	92
28	94
29	98
30	100
31	102
32	104
33	106
34	108
35	110
36	112
37	114
38	116
39	118
40	120
41	122
42	126
43	128
44	130
45	132
46	134
47	136
48	140
49	144
50	146
51	152
52	154
53	156
54	158
55	164
56	166
57	172
58	182
59	188
60	196
61	198
62	200
63	214

n	a(n)
1	2
2	4
3	6
4	8
5	12
6	18
7	20
8	22
9	24
10	26
11	30
12	32
13	38
14	40
15	44
16	52
17	56
18	58
19	62
20	64
21	70
22	72
23	76
24	82
25	84
26	88
27	92
28	94
29	98
30	100
31	102
32	104
33	106
34	108
35	110
36	112
37	114
38	116
39	118
40	120
41	122
42	126
43	128
44	130
45	132
46	134
47	136
48	140
49	144
50	146
51	152
52	154
53	156
54	158
55	164
56	166
57	172
58	182
59	188
60	196
61	198
62	200
63	214

n	a(n)
1	2
2	4
3	6
4	8
5	12
6	18
7	20
8	22
9	24
10	26
11	30
12	32
13	38
14	40
15	44
16	52
17	56
18	58
19	62
20	64
21	70
22	72
23	76
24	82
25	84
26	88
27	92
28	94
29	98
30	100
31	102
32	104
33	106
34	108
35	110
36	112
37	114
38	116
39	118
40	120
41	122
42	126
43	128
44	130
45	132
46	134
47	136
48	140
49	144
50	146
51	152
52	154
53	156
54	158
55	164
56	166
57	172
58	182
59	188
60	196
61	198
62	200
63	214