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.

A189340 Number of n X 6 binary arrays without the pattern 1 0 0 1 diagonally, vertically, antidiagonally or horizontally.

Original entry on oeis.org

52, 2704, 140608, 3988168, 109746642, 2650369322, 68439605144, 1732402041622, 45288523287014, 1169200527259744, 30459419241960870, 788089712516187485, 20460101431991974234, 529811400562012142385, 13741195617567627797520
Offset: 1

Views

Author

R. H. Hardin, Apr 20 2011

Keywords

Comments

Column 6 of A189343.

Examples

			Some solutions for 4 X 6:
..0..0..0..1..1..0....0..0..0..0..1..0....0..0..0..0..1..0....0..0..1..1..0..1
..0..0..1..0..0..0....0..0..1..1..1..1....0..0..0..1..0..1....0..0..0..1..1..0
..0..1..1..1..0..1....0..1..1..1..0..1....0..0..1..1..0..1....0..1..1..1..0..1
..0..0..0..1..0..1....0..0..0..1..1..0....0..1..0..0..0..1....0..0..0..1..0..0