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.

A179611 Eight white kings and one red king on a 3 X 3 chessboard. G.f.: (1+2*x)/(1 - 2*x - 8*x^2 - 4*x^3).

Table of values

n a(n)
0 1
1 4
2 16
3 68
4 280
5 1168
6 4848
7 20160
8 83776
9 348224
10 1447296
11 6015488
12 25002240
13 103917568
14 431915008
15 1795179520
16 7461349376
17 31011794944
18 128895102976
19 535729963008
20 2226667929600
21 9254755975168
22 38465775239168

List of values

[1, 4, 16, 68, 280, 1168, 4848, 20160, 83776, 348224, 1447296, 6015488, 25002240, 103917568, 431915008, 1795179520, 7461349376, 31011794944, 128895102976, 535729963008, 2226667929600, 9254755975168, 38465775239168]