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.

A187288 Number of 3-step one or two space at a time rook's tours on an n X n board summed over all starting positions.

Table of values

n a(n)
1 0
2 8
3 108
4 328
5 672
6 1128
7 1696
8 2376
9 3168
10 4072
11 5088
12 6216
13 7456
14 8808
15 10272
16 11848
17 13536
18 15336
19 17248
20 19272
21 21408
22 23656
23 26016
24 28488
25 31072
26 33768
27 36576
28 39496
29 42528
30 45672
31 48928
32 52296
33 55776
34 59368
35 63072
36 66888
37 70816
38 74856
39 79008

List of values

[0, 8, 108, 328, 672, 1128, 1696, 2376, 3168, 4072, 5088, 6216, 7456, 8808, 10272, 11848, 13536, 15336, 17248, 19272, 21408, 23656, 26016, 28488, 31072, 33768, 36576, 39496, 42528, 45672, 48928, 52296, 55776, 59368, 63072, 66888, 70816, 74856, 79008]