A109199 - cp's OEIS frontend

A109199 Minimal value of k>0 such that n^4 + k^2 is semiprime.

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

[2, 3, 3, 1, 3, 1, 7, 1, 1, 14, 1, 1, 1, 1, 1, 2, 3, 1, 1, 5, 17, 1, 1, 1, 17, 2, 1, 10, 9, 1, 1, 4, 1, 4, 5, 1, 1, 6, 1, 1, 1, 5, 1, 4, 5, 7, 5, 6, 13, 5, 1, 14, 1, 4, 5, 2, 3, 1, 1, 14, 7, 1, 1, 4, 7, 1, 5, 4, 1, 16, 3, 1, 1, 1, 3, 4, 5, 6, 1, 10, 7, 1, 9, 4, 1, 3, 1, 16, 3, 4, 31, 15, 1, 4, 1, 3, 5, 6, 1, 4]

cp's OEIS Frontend

A109199 Minimal value of k>0 such that n^4 + k^2 is semiprime.

Table of values

List of values

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

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

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