A239472 - cp's OEIS frontend

A239472 Least number k such that k^n-(k-1)^n-...-3^n-2^n is prime. a(n) = 0 if no such number exists.

n	a(n)
1	2
2	3
3	3
4	7
5	3
6	0
7	0
8	0
9	0
10	7
11	7
12	0
13	4
14	0
15	8
16	11
17	3
18	16
19	15
20	0
21	4
22	7
23	0
24	23
25	0
26	19
27	12
28	11
29	3
30	0
31	3
32	7
33	12
34	0
35	12
36	0
37	0
38	0
39	0
40	0
41	16
42	0
43	0
44	0
45	59
46	11
47	44
48	32
49	16
50	0
51	0
52	0
53	3
54	0
55	23
56	0
57	20
58	75
59	3
60	0
61	28
62	0
63	0
64	0
65	36
66	0
67	60
68	0
69	0
70	0
71	36
72	0
73	0
74	0
75	0
76	19
77	0
78	0
79	0
80	0
81	0
82	91
83	75
84	0
85	0
86	0
87	32
88	108
89	7
90	0
91	60
92	0
93	40
94	39
95	0
96	0
97	0
98	0
99	80

[2, 3, 3, 7, 3, 0, 0, 0, 0, 7, 7, 0, 4, 0, 8, 11, 3, 16, 15, 0, 4, 7, 0, 23, 0, 19, 12, 11, 3, 0, 3, 7, 12, 0, 12, 0, 0, 0, 0, 0, 16, 0, 0, 0, 59, 11, 44, 32, 16, 0, 0, 0, 3, 0, 23, 0, 20, 75, 3, 0, 28, 0, 0, 0, 36, 0, 60, 0, 0, 0, 36, 0, 0, 0, 0, 19, 0, 0, 0, 0, 0, 91, 75, 0, 0, 0, 32, 108, 7, 0, 60, 0, 40, 39, 0, 0, 0, 0, 80]

cp's OEIS Frontend

A239472 Least number k such that k^n-(k-1)^n-...-3^n-2^n is prime. a(n) = 0 if no such number exists.

Table of values

List of values

n	a(n)
1	2
2	3
3	3
4	7
5	3
6	0
7	0
8	0
9	0
10	7
11	7
12	0
13	4
14	0
15	8
16	11
17	3
18	16
19	15
20	0
21	4
22	7
23	0
24	23
25	0
26	19
27	12
28	11
29	3
30	0
31	3
32	7
33	12
34	0
35	12
36	0
37	0
38	0
39	0
40	0
41	16
42	0
43	0
44	0
45	59
46	11
47	44
48	32
49	16
50	0
51	0
52	0
53	3
54	0
55	23
56	0
57	20
58	75
59	3
60	0
61	28
62	0
63	0
64	0
65	36
66	0
67	60
68	0
69	0
70	0
71	36
72	0
73	0
74	0
75	0
76	19
77	0
78	0
79	0
80	0
81	0
82	91
83	75
84	0
85	0
86	0
87	32
88	108
89	7
90	0
91	60
92	0
93	40
94	39
95	0
96	0
97	0
98	0
99	80

n	a(n)
1	2
2	3
3	3
4	7
5	3
6	0
7	0
8	0
9	0
10	7
11	7
12	0
13	4
14	0
15	8
16	11
17	3
18	16
19	15
20	0
21	4
22	7
23	0
24	23
25	0
26	19
27	12
28	11
29	3
30	0
31	3
32	7
33	12
34	0
35	12
36	0
37	0
38	0
39	0
40	0
41	16
42	0
43	0
44	0
45	59
46	11
47	44
48	32
49	16
50	0
51	0
52	0
53	3
54	0
55	23
56	0
57	20
58	75
59	3
60	0
61	28
62	0
63	0
64	0
65	36
66	0
67	60
68	0
69	0
70	0
71	36
72	0
73	0
74	0
75	0
76	19
77	0
78	0
79	0
80	0
81	0
82	91
83	75
84	0
85	0
86	0
87	32
88	108
89	7
90	0
91	60
92	0
93	40
94	39
95	0
96	0
97	0
98	0
99	80

n	a(n)
1	2
2	3
3	3
4	7
5	3
6	0
7	0
8	0
9	0
10	7
11	7
12	0
13	4
14	0
15	8
16	11
17	3
18	16
19	15
20	0
21	4
22	7
23	0
24	23
25	0
26	19
27	12
28	11
29	3
30	0
31	3
32	7
33	12
34	0
35	12
36	0
37	0
38	0
39	0
40	0
41	16
42	0
43	0
44	0
45	59
46	11
47	44
48	32
49	16
50	0
51	0
52	0
53	3
54	0
55	23
56	0
57	20
58	75
59	3
60	0
61	28
62	0
63	0
64	0
65	36
66	0
67	60
68	0
69	0
70	0
71	36
72	0
73	0
74	0
75	0
76	19
77	0
78	0
79	0
80	0
81	0
82	91
83	75
84	0
85	0
86	0
87	32
88	108
89	7
90	0
91	60
92	0
93	40
94	39
95	0
96	0
97	0
98	0
99	80