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.

A189257 Number of n X n binary arrays without the pattern 0 0 1 diagonally, antidiagonally or horizontally.

Table of values

n a(n)
1 2
2 16
3 280
4 8900
5 552752
6 68635317
7 17747766886
8 9421503162646
9 10606582683139102
10 24593238398265693575
11 121227430181311808878846
12 1234571538047080619811567488
13 26705899629138438568650919545084

List of values

[2, 16, 280, 8900, 552752, 68635317, 17747766886, 9421503162646, 10606582683139102, 24593238398265693575, 121227430181311808878846, 1234571538047080619811567488, 26705899629138438568650919545084]

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

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