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.

A208495 Number of n X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 1 0 and 1 1 1 vertically.

Table of values

n a(n)
1 2
2 16
3 60
4 324
5 1794
6 12654
7 111328
8 1037300
9 13597800
10 200667632
11 3402101520
12 81763293780
13 1957289927740
14 66305181080964
15 2590637896086730
16 114679284980561840
17 7286860676676341916
18 454949245195033857996

List of values

[2, 16, 60, 324, 1794, 12654, 111328, 1037300, 13597800, 200667632, 3402101520, 81763293780, 1957289927740, 66305181080964, 2590637896086730, 114679284980561840, 7286860676676341916, 454949245195033857996]

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

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