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.

A205590 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with no 2X2 subblock having the same number of equal edges as its horizontal or vertical neighbors, and new values 0..2 introduced in row major order.

Original entry on oeis.org

14, 74, 74, 413, 550, 413, 2268, 4220, 4220, 2268, 12574, 32500, 48401, 32500, 12574, 69338, 248940, 541966, 541966, 248940, 69338, 383440, 1910922, 6127845, 8952876, 6127845, 1910922, 383440, 2117054, 14668206, 68604790, 147377704, 147377704
Offset: 1

Views

Author

R. H. Hardin Jan 29 2012

Keywords

Comments

Table starts
......14........74........413.........2268..........12574...........69338
......74.......550.......4220........32500.........248940.........1910922
.....413......4220......48401.......541966........6127845........68604790
....2268.....32500.....541966......8952876......147377704......2444556894
...12574....248940....6127845....147377704.....3619876639.....88339585116
...69338...1910922...68604790...2444556894....88339585116...3232900348158
..383440..14668206..776680394..40477518336..2185708696857.118372688297292
.2117054.112560786.8702185466.670667507098.53385992474116

Examples

			Some solutions for n=4 k=3
..0..0..0..1....0..0..1..0....0..0..1..2....0..1..1..0....0..0..0..0
..2..0..0..2....1..0..2..1....2..1..2..2....1..2..1..2....0..0..1..2
..0..1..2..2....2..0..0..0....1..0..2..2....0..0..2..2....1..0..2..0
..2..1..1..0....1..2..1..1....1..1..0..2....0..0..2..2....2..2..1..0
..2..2..0..1....1..1..2..0....2..0..0..1....0..1..2..0....1..2..0..1