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.

A230672 Number of n X 5 0..2 arrays x(i,j) with each element horizontally, diagonally or antidiagonally next to at least one element with value 2-x(i,j).

Original entry on oeis.org

15, 3387, 340563, 37034355, 4022141121, 436827078531, 47444197636239, 5152946201086569, 559664961809994753, 60785594007085980027, 6601964808003397959249, 717043900743978231419349
Offset: 1

Views

Author

R. H. Hardin, Oct 27 2013

Keywords

Comments

Column 5 of A230675.

Examples

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

Crossrefs

Cf. A230675.

Formula

Empirical recurrence of order 80 (see link above).