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.

A207371 Number of 6Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 0 1 1 vertically.

Table of values

n a(n)
1 16
2 256
3 784
4 3844
5 14884
6 42849
7 142884
8 393129
9 1067089
10 2839225
11 7059649
12 17489124
13 41847961
14 97970404
15 226171521
16 511302544
17 1141764100
18 2515122801
19 5472448576
20 11789182084
21 25139688025
22 53146847296
23 111453819409

List of values

[16, 256, 784, 3844, 14884, 42849, 142884, 393129, 1067089, 2839225, 7059649, 17489124, 41847961, 97970404, 226171521, 511302544, 1141764100, 2515122801, 5472448576, 11789182084, 25139688025, 53146847296, 111453819409]

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

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