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.

A208691 Number of 5 X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 1 1 and 1 0 1 vertically.

Table of values

n a(n)
1 14
2 196
3 490
4 3430
5 12096
6 66094
7 269766
8 1331988
9 5795314
10 27403166
11 122618944
12 569030406
13 2577715070
14 11864806436
15 54038278042
16 247841874742
17 1131464944960
18 5181256121790
19 23678302787734
20 108354576646260
21 495403870286178

List of values

[14, 196, 490, 3430, 12096, 66094, 269766, 1331988, 5795314, 27403166, 122618944, 569030406, 2577715070, 11864806436, 54038278042, 247841874742, 1131464944960, 5181256121790, 23678302787734, 108354576646260, 495403870286178]

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

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