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.

A187027 T(n,k) is the number of n-step one or two collinear space at a time queen's tours on a k X k board summed over all starting positions.

Table of values

n a(n)
1 1
2 4
3 0
4 9
5 12
6 0
7 16
8 56
9 24
10 0
11 25
12 132
13 296
14 24
15 0
16 36
17 240
18 1008
19 1344
20 0
21 0
22 49
23 380
24 2232
25 7056
26 5120
27 0
28 0
29 64
30 552
31 3936
32 19568
33 45152
34 15760
35 0
36 0
37 81
38 756
39 6120
40 39348
41 161256
42 263000
43 36816
44 0
45 0
46 100
47 992
48 8784
49 66360
50 376248
51 1251720
52 1384152
53 57904
54 0
55 0

List of values

[1, 4, 0, 9, 12, 0, 16, 56, 24, 0, 25, 132, 296, 24, 0, 36, 240, 1008, 1344, 0, 0, 49, 380, 2232, 7056, 5120, 0, 0, 64, 552, 3936, 19568, 45152, 15760, 0, 0, 81, 756, 6120, 39348, 161256, 263000, 36816, 0, 0, 100, 992, 8784, 66360, 376248, 1251720, 1384152, 57904, 0, 0]