A090925 - cp's OEIS frontend

A090925 Permutation of natural numbers arising from a square spiral.

n	a(n)
1	1
2	4
3	5
4	6
5	7
6	8
7	9
8	2
9	3
10	14
11	15
12	16
13	17
14	18
15	19
16	20
17	21
18	22
19	23
20	24
21	25
22	10
23	11
24	12
25	13
26	32
27	33
28	34
29	35
30	36
31	37
32	38
33	39
34	40
35	41
36	42
37	43
38	44
39	45
40	46
41	47
42	48
43	49
44	26
45	27
46	28
47	29
48	30
49	31
50	58
51	59
52	60
53	61
54	62
55	63
56	64
57	65
58	66
59	67
60	68
61	69
62	70
63	71
64	72
65	73
66	74
67	75
68	76
69	77
70	78
71	79
72	80

[1, 4, 5, 6, 7, 8, 9, 2, 3, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 10, 11, 12, 13, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 26, 27, 28, 29, 30, 31, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80]

cp's OEIS Frontend

A090925 Permutation of natural numbers arising from a square spiral.

Table of values

List of values

n	a(n)
1	1
2	4
3	5
4	6
5	7
6	8
7	9
8	2
9	3
10	14
11	15
12	16
13	17
14	18
15	19
16	20
17	21
18	22
19	23
20	24
21	25
22	10
23	11
24	12
25	13
26	32
27	33
28	34
29	35
30	36
31	37
32	38
33	39
34	40
35	41
36	42
37	43
38	44
39	45
40	46
41	47
42	48
43	49
44	26
45	27
46	28
47	29
48	30
49	31
50	58
51	59
52	60
53	61
54	62
55	63
56	64
57	65
58	66
59	67
60	68
61	69
62	70
63	71
64	72
65	73
66	74
67	75
68	76
69	77
70	78
71	79
72	80

n	a(n)
1	1
2	4
3	5
4	6
5	7
6	8
7	9
8	2
9	3
10	14
11	15
12	16
13	17
14	18
15	19
16	20
17	21
18	22
19	23
20	24
21	25
22	10
23	11
24	12
25	13
26	32
27	33
28	34
29	35
30	36
31	37
32	38
33	39
34	40
35	41
36	42
37	43
38	44
39	45
40	46
41	47
42	48
43	49
44	26
45	27
46	28
47	29
48	30
49	31
50	58
51	59
52	60
53	61
54	62
55	63
56	64
57	65
58	66
59	67
60	68
61	69
62	70
63	71
64	72
65	73
66	74
67	75
68	76
69	77
70	78
71	79
72	80

n	a(n)
1	1
2	4
3	5
4	6
5	7
6	8
7	9
8	2
9	3
10	14
11	15
12	16
13	17
14	18
15	19
16	20
17	21
18	22
19	23
20	24
21	25
22	10
23	11
24	12
25	13
26	32
27	33
28	34
29	35
30	36
31	37
32	38
33	39
34	40
35	41
36	42
37	43
38	44
39	45
40	46
41	47
42	48
43	49
44	26
45	27
46	28
47	29
48	30
49	31
50	58
51	59
52	60
53	61
54	62
55	63
56	64
57	65
58	66
59	67
60	68
61	69
62	70
63	71
64	72
65	73
66	74
67	75
68	76
69	77
70	78
71	79
72	80