A217011 - cp's OEIS frontend

A217011 Permutation of natural numbers arising from applying the walk of a square spiral (e.g. A214526) to the data of right triangular type-2 spiral (defined in A214251).

n	a(n)
1	1
2	5
3	19
4	6
5	8
6	9
7	10
8	2
9	3
10	4
11	18
12	41
13	73
14	42
15	20
16	7
17	24
18	25
19	26
20	27
21	28
22	11
23	12
24	13
25	14
26	15
27	17
28	40
29	72
30	113
31	163
32	114
33	74
34	43
35	21
36	23
37	49
38	50
39	51
40	52
41	53
42	54
43	55
44	29
45	30
46	31
47	32
48	33
49	34
50	35
51	16
52	39
53	71
54	112
55	162
56	221

[1, 5, 19, 6, 8, 9, 10, 2, 3, 4, 18, 41, 73, 42, 20, 7, 24, 25, 26, 27, 28, 11, 12, 13, 14, 15, 17, 40, 72, 113, 163, 114, 74, 43, 21, 23, 49, 50, 51, 52, 53, 54, 55, 29, 30, 31, 32, 33, 34, 35, 16, 39, 71, 112, 162, 221]

cp's OEIS Frontend

A217011 Permutation of natural numbers arising from applying the walk of a square spiral (e.g. A214526) to the data of right triangular type-2 spiral (defined in A214251).

Table of values

List of values

n	a(n)
1	1
2	5
3	19
4	6
5	8
6	9
7	10
8	2
9	3
10	4
11	18
12	41
13	73
14	42
15	20
16	7
17	24
18	25
19	26
20	27
21	28
22	11
23	12
24	13
25	14
26	15
27	17
28	40
29	72
30	113
31	163
32	114
33	74
34	43
35	21
36	23
37	49
38	50
39	51
40	52
41	53
42	54
43	55
44	29
45	30
46	31
47	32
48	33
49	34
50	35
51	16
52	39
53	71
54	112
55	162
56	221

n	a(n)
1	1
2	5
3	19
4	6
5	8
6	9
7	10
8	2
9	3
10	4
11	18
12	41
13	73
14	42
15	20
16	7
17	24
18	25
19	26
20	27
21	28
22	11
23	12
24	13
25	14
26	15
27	17
28	40
29	72
30	113
31	163
32	114
33	74
34	43
35	21
36	23
37	49
38	50
39	51
40	52
41	53
42	54
43	55
44	29
45	30
46	31
47	32
48	33
49	34
50	35
51	16
52	39
53	71
54	112
55	162
56	221

n	a(n)
1	1
2	5
3	19
4	6
5	8
6	9
7	10
8	2
9	3
10	4
11	18
12	41
13	73
14	42
15	20
16	7
17	24
18	25
19	26
20	27
21	28
22	11
23	12
24	13
25	14
26	15
27	17
28	40
29	72
30	113
31	163
32	114
33	74
34	43
35	21
36	23
37	49
38	50
39	51
40	52
41	53
42	54
43	55
44	29
45	30
46	31
47	32
48	33
49	34
50	35
51	16
52	39
53	71
54	112
55	162
56	221