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.

A307110 Index of matching grid point in the bijection between two infinite quadratic grids with one grid rotated by Pi/4 around the common point (0,0), using an enumeration of the grid points by A305575 and A305576.

Table of values

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

List of values

[0, 1, 6, 3, 8, 2, 11, 4, 9, 5, 15, 7, 19, 14, 10, 16, 17, 18, 12, 20, 13, 26, 27, 28, 25, 21, 22, 23, 24, 38, 31, 40, 33, 42, 35, 44, 29, 30, 51, 32, 53, 34, 55, 36, 49, 57, 58, 59, 60, 62, 39, 64, 41, 66, 43, 68, 37, 46, 47, 48, 45, 50, 63, 52, 65, 54, 67]