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.

A203406 Number of (n+2)X9 binary arrays avoiding patterns 000 and 111 in rows and columns.

Table of values

n a(n)
1 176238
2 5327258
3 119835492
4 3024430930
5 72950746702
6 1791372199364
7 43680343039806
8 1068074622125486
9 26087996711485980
10 637482788594287422
11 15574804643638753398
12 380545025412528955724
13 9297752486304073629542

List of values

[176238, 5327258, 119835492, 3024430930, 72950746702, 1791372199364, 43680343039806, 1068074622125486, 26087996711485980, 637482788594287422, 15574804643638753398, 380545025412528955724, 9297752486304073629542]

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

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