A109204 - cp's OEIS frontend

A109204 Minimal value of k>0 such that n^9 + k^2 is a semiprime.

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

[2, 3, 5, 10, 5, 2, 11, 4, 7, 2, 9, 4, 7, 5, 3, 2, 7, 16, 7, 2, 39, 2, 25, 12, 5, 7, 21, 2, 5, 3, 7, 16, 9, 17, 5, 24, 19, 4, 3, 20, 7, 6, 11, 4, 3, 4, 17, 12, 17, 2, 7, 70, 3, 3, 5, 2, 11, 16, 5, 42, 7, 4, 3, 26, 3, 9, 25, 26, 9, 5, 33, 6, 23, 12, 23, 2, 9, 6, 7, 2, 23, 4, 3, 16, 11, 16, 9, 2, 3]

cp's OEIS Frontend

A109204 Minimal value of k>0 such that n^9 + k^2 is a semiprime.

Table of values

List of values

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

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

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