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.

A201862 Number of ways to place k nonattacking bishops on an n X n board, sum over all k>=0.

Table of values

n a(n)
0 1
1 2
2 9
3 70
4 729
5 9918
6 167281
7 3423362
8 82609921
9 2319730026
10 74500064809
11 2711723081550
12 110568316431609
13 5016846683306758
14 251180326892449969
15 13806795579059621930
16 827911558468860287041
17 53940895144894708523922
18 3799498445458163685753481
19 288400498147873552894868886

List of values

[1, 2, 9, 70, 729, 9918, 167281, 3423362, 82609921, 2319730026, 74500064809, 2711723081550, 110568316431609, 5016846683306758, 251180326892449969, 13806795579059621930, 827911558468860287041, 53940895144894708523922, 3799498445458163685753481, 288400498147873552894868886]

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

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