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.

A217543 Number of n X 4 arrays of the minimum value of corresponding elements and their horizontal, vertical, diagonal or antidiagonal neighbors in a random 0..2 n X 4 array.

Original entry on oeis.org

17, 17, 289, 1401, 10213, 64473, 431241, 2824177, 18626981, 122511585, 806649933, 5309370017, 34951088945, 230067107597, 1514453687653, 9969070507989, 65622772473105, 431970507432905, 2843503407066145, 18717737327894065
Offset: 1

Views

Author

R. H. Hardin, Oct 06 2012

Keywords

Comments

Column 4 of A217547.

Examples

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

Crossrefs

Cf. A217547.