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.

A175654 Eight bishops and one elephant on a 3 X 3 chessboard. G.f.: (1 - x - x^2)/(1 - 3*x - x^2 + 6*x^3).

Table of values

n a(n)
0 1
1 2
2 6
3 14
4 36
5 86
6 210
7 500
8 1194
9 2822
10 6660
11 15638
12 36642
13 85604
14 199626
15 464630
16 1079892
17 2506550
18 5811762
19 13462484
20 31159914
21 72071654
22 166599972
23 384912086
24 888906306
25 2052031172
26 4735527306
27 10925175254
28 25198866036
29 58108609526
30 133973643090

List of values

[1, 2, 6, 14, 36, 86, 210, 500, 1194, 2822, 6660, 15638, 36642, 85604, 199626, 464630, 1079892, 2506550, 5811762, 13462484, 31159914, 72071654, 166599972, 384912086, 888906306, 2052031172, 4735527306, 10925175254, 25198866036, 58108609526, 133973643090]

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

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