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.

A201236 Number of ways to place 2 non-attacking wazirs on an n X n toroidal board.

Table of values

n a(n)
1 0
2 2
3 18
4 88
5 250
6 558
7 1078
8 1888
9 3078
10 4750
11 7018
12 10008
13 13858
14 18718
15 24750
16 32128
17 41038
18 51678
19 64258
20 79000
21 96138
22 115918
23 138598
24 164448
25 193750
26 226798
27 263898
28 305368
29 351538
30 402750
31 459358
32 521728
33 590238
34 665278
35 747250
36 836568
37 933658
38 1038958

List of values

[0, 2, 18, 88, 250, 558, 1078, 1888, 3078, 4750, 7018, 10008, 13858, 18718, 24750, 32128, 41038, 51678, 64258, 79000, 96138, 115918, 138598, 164448, 193750, 226798, 263898, 305368, 351538, 402750, 459358, 521728, 590238, 665278, 747250, 836568, 933658, 1038958]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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