A220572 - cp's OEIS frontend

A220572 Number of ways to write 2n-1=x+y (x,y>=0) with x^18+3*y^18 prime.

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

[1, 2, 1, 1, 1, 1, 2, 1, 1, 2, 1, 4, 5, 4, 1, 2, 4, 1, 4, 1, 2, 1, 2, 1, 6, 1, 4, 2, 4, 3, 6, 3, 2, 4, 2, 5, 6, 4, 5, 4, 5, 5, 8, 7, 4, 7, 7, 6, 7, 4, 6, 7, 5, 6, 3, 11, 7, 1, 5, 3, 5, 6, 6, 10, 4, 13, 12, 9, 4, 9, 10, 5, 8, 3, 6, 7, 5, 4, 8, 13, 6, 3, 5, 5, 11, 6, 13, 4, 9, 10, 8, 12, 11, 8, 7, 10, 8, 7, 8, 8]

cp's OEIS Frontend

A220572 Number of ways to write 2n-1=x+y (x,y>=0) with x^18+3*y^18 prime.

Table of values

List of values

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

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

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