A361299 - cp's OEIS frontend

A361299 Counterclockwise spiral constructed of distinct terms such that any two terms a knight's move apart are coprime; always choose the smallest possible positive term.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	9
8	8
9	11
10	10
11	13
12	6
13	15
14	12
15	17
16	14
17	19
18	16
19	23
20	18
21	25
22	20
23	29
24	22
25	21
26	24
27	31
28	26
29	37
30	28
31	35
32	32
33	41
34	34
35	43
36	27
37	33
38	36
39	47
40	44
41	39
42	38
43	49
44	40
45	53
46	46
47	59
48	30
49	51
50	50
51	61
52	55
53	67
54	58
55	71
56	52
57	45
58	56
59	73
60	62
61	65
62	64
63	79
64	42
65	77
66	48
67	83

[1, 2, 3, 4, 5, 7, 9, 8, 11, 10, 13, 6, 15, 12, 17, 14, 19, 16, 23, 18, 25, 20, 29, 22, 21, 24, 31, 26, 37, 28, 35, 32, 41, 34, 43, 27, 33, 36, 47, 44, 39, 38, 49, 40, 53, 46, 59, 30, 51, 50, 61, 55, 67, 58, 71, 52, 45, 56, 73, 62, 65, 64, 79, 42, 77, 48, 83]

cp's OEIS Frontend

A361299 Counterclockwise spiral constructed of distinct terms such that any two terms a knight's move apart are coprime; always choose the smallest possible positive term.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	9
8	8
9	11
10	10
11	13
12	6
13	15
14	12
15	17
16	14
17	19
18	16
19	23
20	18
21	25
22	20
23	29
24	22
25	21
26	24
27	31
28	26
29	37
30	28
31	35
32	32
33	41
34	34
35	43
36	27
37	33
38	36
39	47
40	44
41	39
42	38
43	49
44	40
45	53
46	46
47	59
48	30
49	51
50	50
51	61
52	55
53	67
54	58
55	71
56	52
57	45
58	56
59	73
60	62
61	65
62	64
63	79
64	42
65	77
66	48
67	83

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	9
8	8
9	11
10	10
11	13
12	6
13	15
14	12
15	17
16	14
17	19
18	16
19	23
20	18
21	25
22	20
23	29
24	22
25	21
26	24
27	31
28	26
29	37
30	28
31	35
32	32
33	41
34	34
35	43
36	27
37	33
38	36
39	47
40	44
41	39
42	38
43	49
44	40
45	53
46	46
47	59
48	30
49	51
50	50
51	61
52	55
53	67
54	58
55	71
56	52
57	45
58	56
59	73
60	62
61	65
62	64
63	79
64	42
65	77
66	48
67	83

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	9
8	8
9	11
10	10
11	13
12	6
13	15
14	12
15	17
16	14
17	19
18	16
19	23
20	18
21	25
22	20
23	29
24	22
25	21
26	24
27	31
28	26
29	37
30	28
31	35
32	32
33	41
34	34
35	43
36	27
37	33
38	36
39	47
40	44
41	39
42	38
43	49
44	40
45	53
46	46
47	59
48	30
49	51
50	50
51	61
52	55
53	67
54	58
55	71
56	52
57	45
58	56
59	73
60	62
61	65
62	64
63	79
64	42
65	77
66	48
67	83