A117499 - cp's OEIS frontend

A117499 Number of subsets of {n-1, n, n+1} that sum up to a prime.

n	a(n)
1	4
2	4
3	4
4	3
5	2
6	4
7	2
8	2
9	2
10	2
11	2
12	3
13	1
14	2
15	2
16	2
17	1
18	3
19	2
20	2
21	2
22	2
23	2
24	2
25	0
26	1
27	1
28	1
29	2
30	4
31	2
32	1
33	1
34	1
35	1
36	3
37	2
38	1
39	1
40	2
41	2
42	3
43	1
44	2
45	1
46	1
47	1
48	2
49	1
50	1
51	2
52	2
53	2
54	3
55	1
56	1
57	1
58	1
59	1
60	2
61	1
62	1
63	1
64	1
65	1
66	2
67	1
68	2
69	2
70	2
71	1
72	2
73	1
74	2
75	2
76	1
77	0
78	2
79	2
80	1
81	1
82	2
83	2
84	2
85	0
86	1
87	1
88	1
89	2
90	3
91	1
92	0
93	0
94	0
95	1
96	3
97	2
98	2
99	2
100	2
101	1
102	2
103	1
104	1
105	1

[4, 4, 4, 3, 2, 4, 2, 2, 2, 2, 2, 3, 1, 2, 2, 2, 1, 3, 2, 2, 2, 2, 2, 2, 0, 1, 1, 1, 2, 4, 2, 1, 1, 1, 1, 3, 2, 1, 1, 2, 2, 3, 1, 2, 1, 1, 1, 2, 1, 1, 2, 2, 2, 3, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 2, 2, 2, 1, 2, 1, 2, 2, 1, 0, 2, 2, 1, 1, 2, 2, 2, 0, 1, 1, 1, 2, 3, 1, 0, 0, 0, 1, 3, 2, 2, 2, 2, 1, 2, 1, 1, 1]

cp's OEIS Frontend

A117499 Number of subsets of {n-1, n, n+1} that sum up to a prime.

Table of values

List of values

n	a(n)
1	4
2	4
3	4
4	3
5	2
6	4
7	2
8	2
9	2
10	2
11	2
12	3
13	1
14	2
15	2
16	2
17	1
18	3
19	2
20	2
21	2
22	2
23	2
24	2
25	0
26	1
27	1
28	1
29	2
30	4
31	2
32	1
33	1
34	1
35	1
36	3
37	2
38	1
39	1
40	2
41	2
42	3
43	1
44	2
45	1
46	1
47	1
48	2
49	1
50	1
51	2
52	2
53	2
54	3
55	1
56	1
57	1
58	1
59	1
60	2
61	1
62	1
63	1
64	1
65	1
66	2
67	1
68	2
69	2
70	2
71	1
72	2
73	1
74	2
75	2
76	1
77	0
78	2
79	2
80	1
81	1
82	2
83	2
84	2
85	0
86	1
87	1
88	1
89	2
90	3
91	1
92	0
93	0
94	0
95	1
96	3
97	2
98	2
99	2
100	2
101	1
102	2
103	1
104	1
105	1

n	a(n)
1	4
2	4
3	4
4	3
5	2
6	4
7	2
8	2
9	2
10	2
11	2
12	3
13	1
14	2
15	2
16	2
17	1
18	3
19	2
20	2
21	2
22	2
23	2
24	2
25	0
26	1
27	1
28	1
29	2
30	4
31	2
32	1
33	1
34	1
35	1
36	3
37	2
38	1
39	1
40	2
41	2
42	3
43	1
44	2
45	1
46	1
47	1
48	2
49	1
50	1
51	2
52	2
53	2
54	3
55	1
56	1
57	1
58	1
59	1
60	2
61	1
62	1
63	1
64	1
65	1
66	2
67	1
68	2
69	2
70	2
71	1
72	2
73	1
74	2
75	2
76	1
77	0
78	2
79	2
80	1
81	1
82	2
83	2
84	2
85	0
86	1
87	1
88	1
89	2
90	3
91	1
92	0
93	0
94	0
95	1
96	3
97	2
98	2
99	2
100	2
101	1
102	2
103	1
104	1
105	1

n	a(n)
1	4
2	4
3	4
4	3
5	2
6	4
7	2
8	2
9	2
10	2
11	2
12	3
13	1
14	2
15	2
16	2
17	1
18	3
19	2
20	2
21	2
22	2
23	2
24	2
25	0
26	1
27	1
28	1
29	2
30	4
31	2
32	1
33	1
34	1
35	1
36	3
37	2
38	1
39	1
40	2
41	2
42	3
43	1
44	2
45	1
46	1
47	1
48	2
49	1
50	1
51	2
52	2
53	2
54	3
55	1
56	1
57	1
58	1
59	1
60	2
61	1
62	1
63	1
64	1
65	1
66	2
67	1
68	2
69	2
70	2
71	1
72	2
73	1
74	2
75	2
76	1
77	0
78	2
79	2
80	1
81	1
82	2
83	2
84	2
85	0
86	1
87	1
88	1
89	2
90	3
91	1
92	0
93	0
94	0
95	1
96	3
97	2
98	2
99	2
100	2
101	1
102	2
103	1
104	1
105	1