A308080 - cp's OEIS frontend

A308080 Index positions of the points with integer coordinates with primary sorting by radius and secondary sorting by polar angle in the counterclockwise square spiral described by A174344 and A274923.

n	a(n)
0	1
1	2
2	4
3	6
4	8
5	3
6	5
7	7
8	9
9	11
10	15
11	19
12	23
13	12
14	14
15	16
16	18
17	20
18	22
19	24
20	10
21	13
22	17
23	21
24	25
25	28
26	34
27	40
28	46
29	29
30	33
31	35
32	39
33	41
34	45
35	47
36	27
37	30
38	32
39	36
40	38
41	42
42	44
43	48
44	26
45	53
46	61
47	69
48	77
49	54
50	60
51	62
52	68
53	70
54	76
55	78
56	52
57	31
58	37
59	43
60	49
61	55
62	59
63	63
64	67
65	71
66	75
67	79

[1, 2, 4, 6, 8, 3, 5, 7, 9, 11, 15, 19, 23, 12, 14, 16, 18, 20, 22, 24, 10, 13, 17, 21, 25, 28, 34, 40, 46, 29, 33, 35, 39, 41, 45, 47, 27, 30, 32, 36, 38, 42, 44, 48, 26, 53, 61, 69, 77, 54, 60, 62, 68, 70, 76, 78, 52, 31, 37, 43, 49, 55, 59, 63, 67, 71, 75, 79]

cp's OEIS Frontend

A308080 Index positions of the points with integer coordinates with primary sorting by radius and secondary sorting by polar angle in the counterclockwise square spiral described by A174344 and A274923.

Table of values

List of values

n	a(n)
0	1
1	2
2	4
3	6
4	8
5	3
6	5
7	7
8	9
9	11
10	15
11	19
12	23
13	12
14	14
15	16
16	18
17	20
18	22
19	24
20	10
21	13
22	17
23	21
24	25
25	28
26	34
27	40
28	46
29	29
30	33
31	35
32	39
33	41
34	45
35	47
36	27
37	30
38	32
39	36
40	38
41	42
42	44
43	48
44	26
45	53
46	61
47	69
48	77
49	54
50	60
51	62
52	68
53	70
54	76
55	78
56	52
57	31
58	37
59	43
60	49
61	55
62	59
63	63
64	67
65	71
66	75
67	79

n	a(n)
0	1
1	2
2	4
3	6
4	8
5	3
6	5
7	7
8	9
9	11
10	15
11	19
12	23
13	12
14	14
15	16
16	18
17	20
18	22
19	24
20	10
21	13
22	17
23	21
24	25
25	28
26	34
27	40
28	46
29	29
30	33
31	35
32	39
33	41
34	45
35	47
36	27
37	30
38	32
39	36
40	38
41	42
42	44
43	48
44	26
45	53
46	61
47	69
48	77
49	54
50	60
51	62
52	68
53	70
54	76
55	78
56	52
57	31
58	37
59	43
60	49
61	55
62	59
63	63
64	67
65	71
66	75
67	79

n	a(n)
0	1
1	2
2	4
3	6
4	8
5	3
6	5
7	7
8	9
9	11
10	15
11	19
12	23
13	12
14	14
15	16
16	18
17	20
18	22
19	24
20	10
21	13
22	17
23	21
24	25
25	28
26	34
27	40
28	46
29	29
30	33
31	35
32	39
33	41
34	45
35	47
36	27
37	30
38	32
39	36
40	38
41	42
42	44
43	48
44	26
45	53
46	61
47	69
48	77
49	54
50	60
51	62
52	68
53	70
54	76
55	78
56	52
57	31
58	37
59	43
60	49
61	55
62	59
63	63
64	67
65	71
66	75
67	79