cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A217013 Permutation of natural numbers arising from applying the walk of a square spiral (e.g. A214526) to the data of triangular horizontal-first spiral (defined in A214250).

Table of values

n a(n)
1 1
2 3
3 14
4 4
5 6
6 7
7 8
8 2
9 12
10 30
11 13
12 32
13 59
14 33
15 15
16 5
17 19
18 20
19 21
20 22
21 23
22 9
23 11
24 29
25 55
26 89
27 56
28 31
29 58
30 93
31 136
32 94
33 60
34 34
35 16
36 18
37 40
38 41
39 42
40 43
41 44
42 45
43 46
44 24
45 10
46 28
47 54
48 88
49 130
50 180
51 131
52 90
53 57
54 92
55 135
56 186
57 245
58 187
59 137
60 95
61 61
62 35
63 17
64 39
65 69

List of values

[1, 3, 14, 4, 6, 7, 8, 2, 12, 30, 13, 32, 59, 33, 15, 5, 19, 20, 21, 22, 23, 9, 11, 29, 55, 89, 56, 31, 58, 93, 136, 94, 60, 34, 16, 18, 40, 41, 42, 43, 44, 45, 46, 24, 10, 28, 54, 88, 130, 180, 131, 90, 57, 92, 135, 186, 245, 187, 137, 95, 61, 35, 17, 39, 69]