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.

A189791 Number of ways to place n nonattacking bishops on an 2n x 2n toroidal board.

Table of values

n a(n)
1 4
2 80
3 2688
4 132864
5 8647680
6 699678720
7 67711795200
8 7629571031040
9 981168437329920
10 141817953779712000
11 22760391875493888000
12 4016046336733347840000
13 772743693378451931136000
14 161027573368536472485888000
15 36127883615009765477842944000

List of values

[4, 80, 2688, 132864, 8647680, 699678720, 67711795200, 7629571031040, 981168437329920, 141817953779712000, 22760391875493888000, 4016046336733347840000, 772743693378451931136000, 161027573368536472485888000, 36127883615009765477842944000]

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

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