A088125 - cp's OEIS frontend

A088125 Let f(n,x) = 1 + 4x + 6x^2 + 8x^3 + 9x^4 + ... + composite(n)*x^n; a(n) = smallest x such that f(n,x) is a prime, or 0 if no such prime exists.

n	a(n)
1	1
2	1
3	1
4	2
5	6
6	34
7	2
8	1
9	3
10	1
11	11
12	42
13	120
14	12
15	8
16	1
17	4
18	2
19	24
20	86
21	1
22	54
23	154
24	202
25	246
26	25
27	10
28	60
29	1
30	114
31	34
32	22
33	21
34	1
35	88
36	14
37	276
38	70
39	795
40	518
41	448
42	252
43	6
44	2
45	1
46	18
47	768
48	124
49	1
50	186
51	143
52	1
53	138
54	456
55	366
56	19
57	47
58	112
59	336
60	772
61	140
62	3
63	88
64	30
65	188
66	90
67	437
68	90
69	294

[1, 1, 1, 2, 6, 34, 2, 1, 3, 1, 11, 42, 120, 12, 8, 1, 4, 2, 24, 86, 1, 54, 154, 202, 246, 25, 10, 60, 1, 114, 34, 22, 21, 1, 88, 14, 276, 70, 795, 518, 448, 252, 6, 2, 1, 18, 768, 124, 1, 186, 143, 1, 138, 456, 366, 19, 47, 112, 336, 772, 140, 3, 88, 30, 188, 90, 437, 90, 294]

cp's OEIS Frontend

A088125 Let f(n,x) = 1 + 4x + 6x^2 + 8x^3 + 9x^4 + ... + composite(n)*x^n; a(n) = smallest x such that f(n,x) is a prime, or 0 if no such prime exists.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	2
5	6
6	34
7	2
8	1
9	3
10	1
11	11
12	42
13	120
14	12
15	8
16	1
17	4
18	2
19	24
20	86
21	1
22	54
23	154
24	202
25	246
26	25
27	10
28	60
29	1
30	114
31	34
32	22
33	21
34	1
35	88
36	14
37	276
38	70
39	795
40	518
41	448
42	252
43	6
44	2
45	1
46	18
47	768
48	124
49	1
50	186
51	143
52	1
53	138
54	456
55	366
56	19
57	47
58	112
59	336
60	772
61	140
62	3
63	88
64	30
65	188
66	90
67	437
68	90
69	294

n	a(n)
1	1
2	1
3	1
4	2
5	6
6	34
7	2
8	1
9	3
10	1
11	11
12	42
13	120
14	12
15	8
16	1
17	4
18	2
19	24
20	86
21	1
22	54
23	154
24	202
25	246
26	25
27	10
28	60
29	1
30	114
31	34
32	22
33	21
34	1
35	88
36	14
37	276
38	70
39	795
40	518
41	448
42	252
43	6
44	2
45	1
46	18
47	768
48	124
49	1
50	186
51	143
52	1
53	138
54	456
55	366
56	19
57	47
58	112
59	336
60	772
61	140
62	3
63	88
64	30
65	188
66	90
67	437
68	90
69	294

cp's OEIS Frontend

A088125 Let f(n,x) = 1 + 4*x + 6*x^2 + 8*x^3 + 9*x^4 + ... + composite(n)*x^n; a(n) = smallest x such that f(n,x) is a prime, or 0 if no such prime exists.

Table of values

List of values

A088125 Let f(n,x) = 1 + 4x + 6x^2 + 8x^3 + 9x^4 + ... + composite(n)*x^n; a(n) = smallest x such that f(n,x) is a prime, or 0 if no such prime exists.

n	a(n)
1	1
2	1
3	1
4	2
5	6
6	34
7	2
8	1
9	3
10	1
11	11
12	42
13	120
14	12
15	8
16	1
17	4
18	2
19	24
20	86
21	1
22	54
23	154
24	202
25	246
26	25
27	10
28	60
29	1
30	114
31	34
32	22
33	21
34	1
35	88
36	14
37	276
38	70
39	795
40	518
41	448
42	252
43	6
44	2
45	1
46	18
47	768
48	124
49	1
50	186
51	143
52	1
53	138
54	456
55	366
56	19
57	47
58	112
59	336
60	772
61	140
62	3
63	88
64	30
65	188
66	90
67	437
68	90
69	294