A266314 - cp's OEIS frontend

A266314 Least positive integer x such that n + x^7 = y^2 + z^2 for some positive integers y and z, or 0 if no such x exists.

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

[2, 1, 2, 13, 1, 3, 7, 1, 2, 1, 3, 15, 1, 6, 11, 11, 1, 1, 2, 1, 2, 2, 7, 3, 1, 1, 3, 5, 1, 2, 7, 1, 2, 1, 2, 5, 1, 4, 3, 1, 1, 2, 2, 7, 1, 2, 7, 3, 5, 1, 2, 1, 1, 2, 11, 21, 5, 1, 3, 5, 1, 3, 3, 3, 1, 2, 2, 1, 4, 2, 3]

cp's OEIS Frontend

A266314 Least positive integer x such that n + x^7 = y^2 + z^2 for some positive integers y and z, or 0 if no such x exists.

Table of values

List of values

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

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

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