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.

A207062 Number of n X n 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 0 1 and 1 0 1 vertically.

Table of values

n a(n)
1 2
2 16
3 102
4 720
5 6398
6 54684
7 468348
8 4356936
9 41716708
10 403445900
11 4037337213
12 41571957024
13 435311467198
14 4653843868560
15 50835606848268
16 564791240516000
17 6378296516533122
18 73247208566761530
19 853936849893078000

List of values

[2, 16, 102, 720, 6398, 54684, 468348, 4356936, 41716708, 403445900, 4037337213, 41571957024, 435311467198, 4653843868560, 50835606848268, 564791240516000, 6378296516533122, 73247208566761530, 853936849893078000]

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

Content is available under The OEIS End-User License Agreement.