A278922 - cp's OEIS frontend

A278922 Largest p such that n = p + q + r where p < q < r are all prime, or 0 if no such primes p, q, r exist.

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	2
11	0
12	2
13	0
14	2
15	3
16	2
17	0
18	2
19	3
20	2
21	3
22	2
23	5
24	2
25	5
26	2
27	3
28	2
29	5
30	2
31	7
32	2
33	5
34	2
35	7
36	2
37	7
38	2
39	7
40	2
41	11
42	2
43	11
44	2
45	5
46	2
47	11
48	2
49	13
50	2
51	11
52	2
53	13
54	2
55	13
56	2
57	11
58	2
59	17
60	2
61	13
62	2
63	13
64	2
65	17
66	2
67	17
68	2
69	17
70	2
71	19
72	2
73	19
74	2
75	13
76	2
77	17
78	2
79	19
80	2
81	17
82	2
83	23
84	2
85	19
86	2
87	19
88	2
89	23
90	2
91	23
92	2
93	23
94	2
95	23
96	2
97	29
98	2
99	23
100	2
101	29
102	2
103	29
104	2
105	23
106	2
107	29
108	2
109	31
110	2
111	31
112	2
113	29
114	2
115	31
116	2
117	29
118	2
119	31
120	2
121	37

[0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 2, 0, 2, 3, 2, 0, 2, 3, 2, 3, 2, 5, 2, 5, 2, 3, 2, 5, 2, 7, 2, 5, 2, 7, 2, 7, 2, 7, 2, 11, 2, 11, 2, 5, 2, 11, 2, 13, 2, 11, 2, 13, 2, 13, 2, 11, 2, 17, 2, 13, 2, 13, 2, 17, 2, 17, 2, 17, 2, 19, 2, 19, 2, 13, 2, 17, 2, 19, 2, 17, 2, 23, 2, 19, 2, 19, 2, 23, 2, 23, 2, 23, 2, 23, 2, 29, 2, 23, 2, 29, 2, 29, 2, 23, 2, 29, 2, 31, 2, 31, 2, 29, 2, 31, 2, 29, 2, 31, 2, 37]

cp's OEIS Frontend

A278922 Largest p such that n = p + q + r where p < q < r are all prime, or 0 if no such primes p, q, r exist.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	2
11	0
12	2
13	0
14	2
15	3
16	2
17	0
18	2
19	3
20	2
21	3
22	2
23	5
24	2
25	5
26	2
27	3
28	2
29	5
30	2
31	7
32	2
33	5
34	2
35	7
36	2
37	7
38	2
39	7
40	2
41	11
42	2
43	11
44	2
45	5
46	2
47	11
48	2
49	13
50	2
51	11
52	2
53	13
54	2
55	13
56	2
57	11
58	2
59	17
60	2
61	13
62	2
63	13
64	2
65	17
66	2
67	17
68	2
69	17
70	2
71	19
72	2
73	19
74	2
75	13
76	2
77	17
78	2
79	19
80	2
81	17
82	2
83	23
84	2
85	19
86	2
87	19
88	2
89	23
90	2
91	23
92	2
93	23
94	2
95	23
96	2
97	29
98	2
99	23
100	2
101	29
102	2
103	29
104	2
105	23
106	2
107	29
108	2
109	31
110	2
111	31
112	2
113	29
114	2
115	31
116	2
117	29
118	2
119	31
120	2
121	37

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	2
11	0
12	2
13	0
14	2
15	3
16	2
17	0
18	2
19	3
20	2
21	3
22	2
23	5
24	2
25	5
26	2
27	3
28	2
29	5
30	2
31	7
32	2
33	5
34	2
35	7
36	2
37	7
38	2
39	7
40	2
41	11
42	2
43	11
44	2
45	5
46	2
47	11
48	2
49	13
50	2
51	11
52	2
53	13
54	2
55	13
56	2
57	11
58	2
59	17
60	2
61	13
62	2
63	13
64	2
65	17
66	2
67	17
68	2
69	17
70	2
71	19
72	2
73	19
74	2
75	13
76	2
77	17
78	2
79	19
80	2
81	17
82	2
83	23
84	2
85	19
86	2
87	19
88	2
89	23
90	2
91	23
92	2
93	23
94	2
95	23
96	2
97	29
98	2
99	23
100	2
101	29
102	2
103	29
104	2
105	23
106	2
107	29
108	2
109	31
110	2
111	31
112	2
113	29
114	2
115	31
116	2
117	29
118	2
119	31
120	2
121	37

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	2
11	0
12	2
13	0
14	2
15	3
16	2
17	0
18	2
19	3
20	2
21	3
22	2
23	5
24	2
25	5
26	2
27	3
28	2
29	5
30	2
31	7
32	2
33	5
34	2
35	7
36	2
37	7
38	2
39	7
40	2
41	11
42	2
43	11
44	2
45	5
46	2
47	11
48	2
49	13
50	2
51	11
52	2
53	13
54	2
55	13
56	2
57	11
58	2
59	17
60	2
61	13
62	2
63	13
64	2
65	17
66	2
67	17
68	2
69	17
70	2
71	19
72	2
73	19
74	2
75	13
76	2
77	17
78	2
79	19
80	2
81	17
82	2
83	23
84	2
85	19
86	2
87	19
88	2
89	23
90	2
91	23
92	2
93	23
94	2
95	23
96	2
97	29
98	2
99	23
100	2
101	29
102	2
103	29
104	2
105	23
106	2
107	29
108	2
109	31
110	2
111	31
112	2
113	29
114	2
115	31
116	2
117	29
118	2
119	31
120	2
121	37