A229974 - cp's OEIS frontend

A229974 Number of ways to write n = x + y + z (x, y, z > 0) with the six numbers 2x-1, 2x+1, 2xy-1, 2xy+1, 2xyz-1, 2xyz+1 all prime.

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

[0, 0, 0, 1, 1, 4, 2, 1, 2, 4, 5, 3, 3, 8, 1, 9, 4, 6, 3, 8, 16, 8, 4, 8, 7, 3, 10, 7, 3, 14, 4, 6, 8, 13, 12, 14, 6, 8, 13, 7, 13, 15, 13, 9, 9, 10, 7, 13, 14, 7, 16, 15, 12, 8, 16, 31, 11, 6, 16, 13, 16, 15, 26, 8, 10, 17, 10, 12, 11, 17, 9, 9, 13, 18, 17, 23, 14, 10, 7, 13, 29, 13, 18, 14, 9, 19, 21, 14, 19, 14, 25, 11, 14, 18, 13, 21, 15, 26, 14, 8]

cp's OEIS Frontend

A229974 Number of ways to write n = x + y + z (x, y, z > 0) with the six numbers 2x-1, 2x+1, 2xy-1, 2xy+1, 2xyz-1, 2xyz+1 all prime.

Table of values

List of values

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

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

cp's OEIS Frontend

A229974 Number of ways to write n = x + y + z (x, y, z > 0) with the six numbers 2*x-1, 2*x+1, 2*x*y-1, 2*x*y+1, 2*x*y*z-1, 2*x*y*z+1 all prime.

Table of values

List of values

A229974 Number of ways to write n = x + y + z (x, y, z > 0) with the six numbers 2x-1, 2x+1, 2xy-1, 2xy+1, 2xyz-1, 2xyz+1 all prime.

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