A103781 - cp's OEIS frontend

A103781 Sum of any four successive terms is prime, a(1)=a(2)=0,a(3)=1.

n	a(n)
1	0
2	0
3	1
4	1
5	1
6	2
7	3
8	5
9	3
10	6
11	5
12	9
13	9
14	8
15	11
16	13
17	11
18	12
19	17
20	19
21	13
22	18
23	21
24	21
25	19
26	22
27	27
28	29
29	23
30	24
31	31
32	31
33	27
34	38
35	35
36	37
37	29
38	48
39	37
40	43
41	35
42	52
43	43
44	49
45	37
46	62
47	45
48	53
49	39
50	74
51	57
52	57
53	41
54	78
55	63
56	59
57	51
58	84
59	69
60	65
61	53
62	90
63	73
64	67
65	63
66	104
67	77
68	69
69	67
70	118
71	83
72	79
73	69

[0, 0, 1, 1, 1, 2, 3, 5, 3, 6, 5, 9, 9, 8, 11, 13, 11, 12, 17, 19, 13, 18, 21, 21, 19, 22, 27, 29, 23, 24, 31, 31, 27, 38, 35, 37, 29, 48, 37, 43, 35, 52, 43, 49, 37, 62, 45, 53, 39, 74, 57, 57, 41, 78, 63, 59, 51, 84, 69, 65, 53, 90, 73, 67, 63, 104, 77, 69, 67, 118, 83, 79, 69]

cp's OEIS Frontend

A103781 Sum of any four successive terms is prime, a(1)=a(2)=0,a(3)=1.

Table of values

List of values

n	a(n)
1	0
2	0
3	1
4	1
5	1
6	2
7	3
8	5
9	3
10	6
11	5
12	9
13	9
14	8
15	11
16	13
17	11
18	12
19	17
20	19
21	13
22	18
23	21
24	21
25	19
26	22
27	27
28	29
29	23
30	24
31	31
32	31
33	27
34	38
35	35
36	37
37	29
38	48
39	37
40	43
41	35
42	52
43	43
44	49
45	37
46	62
47	45
48	53
49	39
50	74
51	57
52	57
53	41
54	78
55	63
56	59
57	51
58	84
59	69
60	65
61	53
62	90
63	73
64	67
65	63
66	104
67	77
68	69
69	67
70	118
71	83
72	79
73	69

n	a(n)
1	0
2	0
3	1
4	1
5	1
6	2
7	3
8	5
9	3
10	6
11	5
12	9
13	9
14	8
15	11
16	13
17	11
18	12
19	17
20	19
21	13
22	18
23	21
24	21
25	19
26	22
27	27
28	29
29	23
30	24
31	31
32	31
33	27
34	38
35	35
36	37
37	29
38	48
39	37
40	43
41	35
42	52
43	43
44	49
45	37
46	62
47	45
48	53
49	39
50	74
51	57
52	57
53	41
54	78
55	63
56	59
57	51
58	84
59	69
60	65
61	53
62	90
63	73
64	67
65	63
66	104
67	77
68	69
69	67
70	118
71	83
72	79
73	69

n	a(n)
1	0
2	0
3	1
4	1
5	1
6	2
7	3
8	5
9	3
10	6
11	5
12	9
13	9
14	8
15	11
16	13
17	11
18	12
19	17
20	19
21	13
22	18
23	21
24	21
25	19
26	22
27	27
28	29
29	23
30	24
31	31
32	31
33	27
34	38
35	35
36	37
37	29
38	48
39	37
40	43
41	35
42	52
43	43
44	49
45	37
46	62
47	45
48	53
49	39
50	74
51	57
52	57
53	41
54	78
55	63
56	59
57	51
58	84
59	69
60	65
61	53
62	90
63	73
64	67
65	63
66	104
67	77
68	69
69	67
70	118
71	83
72	79
73	69