A276476 - cp's OEIS frontend

A276476 a(n) is the number of distinct integers of the form x^2-x-prime(n) for 0<=x<=prime(n)+1 whose absolute value is prime.

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	9
7	9
8	13
9	11
10	17
11	20
12	17
13	10
14	32
15	16
16	23
17	26
18	30
19	25
20	21
21	55
22	38
23	30
24	27
25	25
26	34
27	57
28	19
29	83
30	49
31	44
32	40
33	39
34	60
35	37
36	77
37	54
38	57
39	27
40	43
41	79
42	67
43	45
44	110
45	42
46	93
47	79
48	79
49	43
50	85
51	46
52	90
53	96
54	41
55	54
56	96
57	127
58	107
59	63
60	78
61	181
62	67
63	78
64	72
65	189
66	51
67	77
68	103

[1, 2, 3, 5, 6, 9, 9, 13, 11, 17, 20, 17, 10, 32, 16, 23, 26, 30, 25, 21, 55, 38, 30, 27, 25, 34, 57, 19, 83, 49, 44, 40, 39, 60, 37, 77, 54, 57, 27, 43, 79, 67, 45, 110, 42, 93, 79, 79, 43, 85, 46, 90, 96, 41, 54, 96, 127, 107, 63, 78, 181, 67, 78, 72, 189, 51, 77, 103]

cp's OEIS Frontend

A276476 a(n) is the number of distinct integers of the form x^2-x-prime(n) for 0<=x<=prime(n)+1 whose absolute value is prime.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	9
7	9
8	13
9	11
10	17
11	20
12	17
13	10
14	32
15	16
16	23
17	26
18	30
19	25
20	21
21	55
22	38
23	30
24	27
25	25
26	34
27	57
28	19
29	83
30	49
31	44
32	40
33	39
34	60
35	37
36	77
37	54
38	57
39	27
40	43
41	79
42	67
43	45
44	110
45	42
46	93
47	79
48	79
49	43
50	85
51	46
52	90
53	96
54	41
55	54
56	96
57	127
58	107
59	63
60	78
61	181
62	67
63	78
64	72
65	189
66	51
67	77
68	103

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	9
7	9
8	13
9	11
10	17
11	20
12	17
13	10
14	32
15	16
16	23
17	26
18	30
19	25
20	21
21	55
22	38
23	30
24	27
25	25
26	34
27	57
28	19
29	83
30	49
31	44
32	40
33	39
34	60
35	37
36	77
37	54
38	57
39	27
40	43
41	79
42	67
43	45
44	110
45	42
46	93
47	79
48	79
49	43
50	85
51	46
52	90
53	96
54	41
55	54
56	96
57	127
58	107
59	63
60	78
61	181
62	67
63	78
64	72
65	189
66	51
67	77
68	103

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	9
7	9
8	13
9	11
10	17
11	20
12	17
13	10
14	32
15	16
16	23
17	26
18	30
19	25
20	21
21	55
22	38
23	30
24	27
25	25
26	34
27	57
28	19
29	83
30	49
31	44
32	40
33	39
34	60
35	37
36	77
37	54
38	57
39	27
40	43
41	79
42	67
43	45
44	110
45	42
46	93
47	79
48	79
49	43
50	85
51	46
52	90
53	96
54	41
55	54
56	96
57	127
58	107
59	63
60	78
61	181
62	67
63	78
64	72
65	189
66	51
67	77
68	103