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.

A187508 Number of 3-step S, E, and NW-moving king's tours on an n X n board summed over all starting positions.

Table of values

n a(n)
1 0
2 6
3 31
4 74
5 135
6 214
7 311
8 426
9 559
10 710
11 879
12 1066
13 1271
14 1494
15 1735
16 1994
17 2271
18 2566
19 2879
20 3210
21 3559
22 3926
23 4311
24 4714
25 5135
26 5574
27 6031
28 6506
29 6999
30 7510
31 8039
32 8586
33 9151
34 9734
35 10335
36 10954
37 11591
38 12246
39 12919
40 13610
41 14319
42 15046
43 15791

List of values

[0, 6, 31, 74, 135, 214, 311, 426, 559, 710, 879, 1066, 1271, 1494, 1735, 1994, 2271, 2566, 2879, 3210, 3559, 3926, 4311, 4714, 5135, 5574, 6031, 6506, 6999, 7510, 8039, 8586, 9151, 9734, 10335, 10954, 11591, 12246, 12919, 13610, 14319, 15046, 15791]