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.

A122747 Bishops on an n X n board (see Robinson paper for details).

Table of values

n a(n)
0 1
1 4
2 144
3 14400
4 2822400
5 914457600
6 442597478400
7 299195895398400
8 269276305858560000
9 311283409572495360000
10 449493243422683299840000
11 792906081397613340917760000
12 1677789268237349829381980160000
13 4194473170593374573454950400000000
14 12231083765450280256194635366400000000

List of values

[1, 4, 144, 14400, 2822400, 914457600, 442597478400, 299195895398400, 269276305858560000, 311283409572495360000, 449493243422683299840000, 792906081397613340917760000, 1677789268237349829381980160000, 4194473170593374573454950400000000, 12231083765450280256194635366400000000]