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.

A056942 Area of rectangle needed to enclose a non-touching spiral of length n on a square lattice.

Table of values

n a(n)
0 0
1 1
2 2
3 4
4 6
5 6
6 9
7 12
8 12
9 12
10 16
11 20
12 20
13 20
14 20
15 25
16 30
17 30
18 30
19 30
20 30
21 36
22 42
23 42
24 42
25 42
26 42
27 42
28 49
29 56
30 56
31 56
32 56
33 56
34 56
35 56
36 64
37 72
38 72
39 72
40 72
41 72
42 72
43 72
44 72
45 81
46 90
47 90
48 90
49 90
50 90
51 90
52 90
53 90
54 90
55 100
56 110
57 110
58 110
59 110
60 110
61 110
62 110
63 110
64 110
65 110
66 121

List of values

[0, 1, 2, 4, 6, 6, 9, 12, 12, 12, 16, 20, 20, 20, 20, 25, 30, 30, 30, 30, 30, 36, 42, 42, 42, 42, 42, 42, 49, 56, 56, 56, 56, 56, 56, 56, 64, 72, 72, 72, 72, 72, 72, 72, 72, 81, 90, 90, 90, 90, 90, 90, 90, 90, 90, 100, 110, 110, 110, 110, 110, 110, 110, 110, 110, 110, 121]

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

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