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.

A232380 Number of 5Xn 0..3 arrays with every 0 next to a 1, every 1 next to a 2 and every 2 next to a 3 horizontally, diagonally or antidiagonally, and no adjacent values equal.

Original entry on oeis.org

1, 934, 36574, 957232, 27133338, 825606450, 24945468636, 747913169216, 22460676406974, 675143834470462, 20291549259837168, 609804313253059260, 18326215546732616794, 550758040677362295570, 16551923665278410826856
Offset: 1

Views

Author

R. H. Hardin, Nov 23 2013

Keywords

Comments

Row 5 of A232376

Examples

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