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.

A257018 Rectangular array read by columns: row i shows the numbers whose greedy quarter-squares representation consists of i terms, for i = 1, 2, 3, 4.

Table of values

n a(n)
1 0
2 3
3 15
4 255
5 1
6 5
7 19
8 271
9 2
10 7
11 23
12 287
13 4
14 8
15 28
16 304
17 6
18 10
19 33
20 321
21 9
22 11
23 35
24 339
25 12
26 13
27 39
28 357
29 16
30 14
31 41
32 376
33 20
34 17
35 45
36 395
37 25
38 18
39 47
40 399
41 30
42 21
43 52
44 415
45 36
46 22
47 54
48 419
49 42
50 24
51 59
52 435
53 49
54 26
55 61
56 439
57 56
58 27
59 63
60 456
61 64
62 29
63 67

List of values

[0, 3, 15, 255, 1, 5, 19, 271, 2, 7, 23, 287, 4, 8, 28, 304, 6, 10, 33, 321, 9, 11, 35, 339, 12, 13, 39, 357, 16, 14, 41, 376, 20, 17, 45, 395, 25, 18, 47, 399, 30, 21, 52, 415, 36, 22, 54, 419, 42, 24, 59, 435, 49, 26, 61, 439, 56, 27, 63, 456, 64, 29, 67]