A228357 - cp's OEIS frontend

A228357 Numbers n such that sum of all primes <=n is not prime.

n	a(n)
1	1
2	5
3	6
4	11
5	12
6	17
7	18
8	19
9	20
10	21
11	22
12	23
13	24
14	25
15	26
16	27
17	28
18	29
19	30
20	31
21	32
22	33
23	34
24	35
25	36
26	41
27	42
28	47
29	48
30	49
31	50
32	51
33	52
34	53
35	54
36	55
37	56
38	57
39	58
40	59
41	60
42	61
43	62
44	63
45	64
46	65
47	66
48	67
49	68
50	69
51	70
52	71
53	72
54	73
55	74
56	75
57	76
58	77
59	78
60	79
61	80
62	81
63	82
64	83
65	84
66	85

[1, 5, 6, 11, 12, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 41, 42, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85]

cp's OEIS Frontend

A228357 Numbers n such that sum of all primes <=n is not prime.

Table of values

List of values

n	a(n)
1	1
2	5
3	6
4	11
5	12
6	17
7	18
8	19
9	20
10	21
11	22
12	23
13	24
14	25
15	26
16	27
17	28
18	29
19	30
20	31
21	32
22	33
23	34
24	35
25	36
26	41
27	42
28	47
29	48
30	49
31	50
32	51
33	52
34	53
35	54
36	55
37	56
38	57
39	58
40	59
41	60
42	61
43	62
44	63
45	64
46	65
47	66
48	67
49	68
50	69
51	70
52	71
53	72
54	73
55	74
56	75
57	76
58	77
59	78
60	79
61	80
62	81
63	82
64	83
65	84
66	85

n	a(n)
1	1
2	5
3	6
4	11
5	12
6	17
7	18
8	19
9	20
10	21
11	22
12	23
13	24
14	25
15	26
16	27
17	28
18	29
19	30
20	31
21	32
22	33
23	34
24	35
25	36
26	41
27	42
28	47
29	48
30	49
31	50
32	51
33	52
34	53
35	54
36	55
37	56
38	57
39	58
40	59
41	60
42	61
43	62
44	63
45	64
46	65
47	66
48	67
49	68
50	69
51	70
52	71
53	72
54	73
55	74
56	75
57	76
58	77
59	78
60	79
61	80
62	81
63	82
64	83
65	84
66	85

n	a(n)
1	1
2	5
3	6
4	11
5	12
6	17
7	18
8	19
9	20
10	21
11	22
12	23
13	24
14	25
15	26
16	27
17	28
18	29
19	30
20	31
21	32
22	33
23	34
24	35
25	36
26	41
27	42
28	47
29	48
30	49
31	50
32	51
33	52
34	53
35	54
36	55
37	56
38	57
39	58
40	59
41	60
42	61
43	62
44	63
45	64
46	65
47	66
48	67
49	68
50	69
51	70
52	71
53	72
54	73
55	74
56	75
57	76
58	77
59	78
60	79
61	80
62	81
63	82
64	83
65	84
66	85