A260580 - cp's OEIS frontend

A260580 Table read by rows: n-th row contains numbers not occurring earlier, that can be written as (p+q)/2 where p is the n-th odd prime, q <= p.

n	a(n)
1	3
2	4
3	5
4	6
5	7
6	8
7	9
8	11
9	10
10	12
11	13
12	14
13	15
14	17
15	16
16	18
17	19
18	20
19	21
20	23
21	24
22	26
23	29
24	22
25	25
26	27
27	30
28	31
29	28
30	33
31	34
32	37
33	32
34	35
35	36
36	39
37	41
38	40
39	42
40	43
41	38
42	44
43	45
44	47
45	48
46	50
47	53
48	51
49	56
50	59
51	46
52	49
53	52
54	54
55	57
56	60
57	61
58	55
59	63
60	64
61	67
62	62
63	65
64	66
65	69
66	71

[3, 4, 5, 6, 7, 8, 9, 11, 10, 12, 13, 14, 15, 17, 16, 18, 19, 20, 21, 23, 24, 26, 29, 22, 25, 27, 30, 31, 28, 33, 34, 37, 32, 35, 36, 39, 41, 40, 42, 43, 38, 44, 45, 47, 48, 50, 53, 51, 56, 59, 46, 49, 52, 54, 57, 60, 61, 55, 63, 64, 67, 62, 65, 66, 69, 71]

cp's OEIS Frontend

A260580 Table read by rows: n-th row contains numbers not occurring earlier, that can be written as (p+q)/2 where p is the n-th odd prime, q <= p.

Table of values

List of values

n	a(n)
1	3
2	4
3	5
4	6
5	7
6	8
7	9
8	11
9	10
10	12
11	13
12	14
13	15
14	17
15	16
16	18
17	19
18	20
19	21
20	23
21	24
22	26
23	29
24	22
25	25
26	27
27	30
28	31
29	28
30	33
31	34
32	37
33	32
34	35
35	36
36	39
37	41
38	40
39	42
40	43
41	38
42	44
43	45
44	47
45	48
46	50
47	53
48	51
49	56
50	59
51	46
52	49
53	52
54	54
55	57
56	60
57	61
58	55
59	63
60	64
61	67
62	62
63	65
64	66
65	69
66	71

n	a(n)
1	3
2	4
3	5
4	6
5	7
6	8
7	9
8	11
9	10
10	12
11	13
12	14
13	15
14	17
15	16
16	18
17	19
18	20
19	21
20	23
21	24
22	26
23	29
24	22
25	25
26	27
27	30
28	31
29	28
30	33
31	34
32	37
33	32
34	35
35	36
36	39
37	41
38	40
39	42
40	43
41	38
42	44
43	45
44	47
45	48
46	50
47	53
48	51
49	56
50	59
51	46
52	49
53	52
54	54
55	57
56	60
57	61
58	55
59	63
60	64
61	67
62	62
63	65
64	66
65	69
66	71

n	a(n)
1	3
2	4
3	5
4	6
5	7
6	8
7	9
8	11
9	10
10	12
11	13
12	14
13	15
14	17
15	16
16	18
17	19
18	20
19	21
20	23
21	24
22	26
23	29
24	22
25	25
26	27
27	30
28	31
29	28
30	33
31	34
32	37
33	32
34	35
35	36
36	39
37	41
38	40
39	42
40	43
41	38
42	44
43	45
44	47
45	48
46	50
47	53
48	51
49	56
50	59
51	46
52	49
53	52
54	54
55	57
56	60
57	61
58	55
59	63
60	64
61	67
62	62
63	65
64	66
65	69
66	71