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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.

A195649 Number of ways to place 10n nonattacking kings on a 20 x 2n chessboard.

Table of values

n a(n)
1 11264
2 5266069
3 714611200
4 50123713793
5 2335042206624
6 82425144219429
7 2383116363555182
8 59315924213143597
9 1314578079936797520
10 26568150968269086211
11 498306336520679626558
12 8788579757709800395287
13 147246060712874767006100
14 2362334876238883501403023

List of values

[11264, 5266069, 714611200, 50123713793, 2335042206624, 82425144219429, 2383116363555182, 59315924213143597, 1314578079936797520, 26568150968269086211, 498306336520679626558, 8788579757709800395287, 147246060712874767006100, 2362334876238883501403023]

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

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