A326583 - cp's OEIS frontend

A326583 Integers k >= 0 such that 2*k + 1 is prime or square.

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	8
9	9
10	11
11	12
12	14
13	15
14	18
15	20
16	21
17	23
18	24
19	26
20	29
21	30
22	33
23	35
24	36
25	39
26	40
27	41
28	44
29	48
30	50
31	51
32	53
33	54
34	56
35	60
36	63
37	65
38	68
39	69
40	74
41	75
42	78
43	81
44	83
45	84
46	86
47	89
48	90
49	95
50	96
51	98
52	99
53	105
54	111
55	112
56	113
57	114
58	116
59	119
60	120

[0, 1, 2, 3, 4, 5, 6, 8, 9, 11, 12, 14, 15, 18, 20, 21, 23, 24, 26, 29, 30, 33, 35, 36, 39, 40, 41, 44, 48, 50, 51, 53, 54, 56, 60, 63, 65, 68, 69, 74, 75, 78, 81, 83, 84, 86, 89, 90, 95, 96, 98, 99, 105, 111, 112, 113, 114, 116, 119, 120]

cp's OEIS Frontend

A326583 Integers k >= 0 such that 2*k + 1 is prime or square.

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	8
9	9
10	11
11	12
12	14
13	15
14	18
15	20
16	21
17	23
18	24
19	26
20	29
21	30
22	33
23	35
24	36
25	39
26	40
27	41
28	44
29	48
30	50
31	51
32	53
33	54
34	56
35	60
36	63
37	65
38	68
39	69
40	74
41	75
42	78
43	81
44	83
45	84
46	86
47	89
48	90
49	95
50	96
51	98
52	99
53	105
54	111
55	112
56	113
57	114
58	116
59	119
60	120

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	8
9	9
10	11
11	12
12	14
13	15
14	18
15	20
16	21
17	23
18	24
19	26
20	29
21	30
22	33
23	35
24	36
25	39
26	40
27	41
28	44
29	48
30	50
31	51
32	53
33	54
34	56
35	60
36	63
37	65
38	68
39	69
40	74
41	75
42	78
43	81
44	83
45	84
46	86
47	89
48	90
49	95
50	96
51	98
52	99
53	105
54	111
55	112
56	113
57	114
58	116
59	119
60	120

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	8
9	9
10	11
11	12
12	14
13	15
14	18
15	20
16	21
17	23
18	24
19	26
20	29
21	30
22	33
23	35
24	36
25	39
26	40
27	41
28	44
29	48
30	50
31	51
32	53
33	54
34	56
35	60
36	63
37	65
38	68
39	69
40	74
41	75
42	78
43	81
44	83
45	84
46	86
47	89
48	90
49	95
50	96
51	98
52	99
53	105
54	111
55	112
56	113
57	114
58	116
59	119
60	120