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.

A279406 Irregular triangle read by rows: T(n,k) (n>=1, 0 <= k <= n^2) = minimal number of squares attacked by k queens on an n X n toroidal board.

Table of values

n a(n)
1 0
2 1
3 0
4 4
5 4
6 4
7 4
8 0
9 9
10 9
11 9
12 9
13 9
14 9
15 9
16 9
17 9
18 0
19 12
20 14
21 15
22 15
23 16
24 16
25 16
26 16
27 16
28 16
29 16
30 16
31 16
32 16
33 16
34 16
35 0
36 17
37 22
38 23
39 24
40 24
41 24
42 24
43 24
44 25
45 25
46 25
47 25
48 25
49 25
50 25
51 25
52 25
53 25
54 25
55 25
56 25
57 25
58 25
59 25
60 25
61 0
62 20
63 26
64 30
65 30
66 32
67 32
68 34
69 34
70 34

List of values

[0, 1, 0, 4, 4, 4, 4, 0, 9, 9, 9, 9, 9, 9, 9, 9, 9, 0, 12, 14, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 0, 17, 22, 23, 24, 24, 24, 24, 24, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 0, 20, 26, 30, 30, 32, 32, 34, 34, 34]

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