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.

A257326 Construct spiral of numbers on square grid as in Comments; sequence gives terms along the "3" arm.

Table of values

n a(n)
1 3
2 2
3 7
4 9
5 5
6 13
7 15
8 17
9 11
10 4
11 19
12 23
13 21
14 25
15 8
16 29
17 10
18 31
19 14
20 37
21 16
22 41
23 22
24 43
25 47
26 27
27 53
28 55
29 26
30 35
31 33
32 49
33 59
34 61
35 67
36 71
37 65
38 73
39 77
40 79
41 83
42 39
43 89
44 97
45 101
46 32
47 103
48 20
49 91
50 34
51 107
52 40
53 109
54 38
55 51
56 113
57 57
58 28
59 85
60 44
61 119
62 46
63 81
64 121
65 45

List of values

[3, 2, 7, 9, 5, 13, 15, 17, 11, 4, 19, 23, 21, 25, 8, 29, 10, 31, 14, 37, 16, 41, 22, 43, 47, 27, 53, 55, 26, 35, 33, 49, 59, 61, 67, 71, 65, 73, 77, 79, 83, 39, 89, 97, 101, 32, 103, 20, 91, 34, 107, 40, 109, 38, 51, 113, 57, 28, 85, 44, 119, 46, 81, 121, 45]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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