A217025 - OEIS

A217025

Number of city-block distance 1, pressure limit 2 movements in an nX5 array with each element moving exactly one horizontally or vertically and no element acquiring more than two neighbors

8, 8464, 3356150, 1501795009, 655816458528, 287247245656900, 125713947023634648, 55023794225718350400, 24082627794060829296632, 10540437995119428253155204, 4613311988802182362231992512

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 5 of A217028

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=2 (movement: 0=n 1=e 2=s 3=w)

..1..2..2..1..3....2..3..3..3..2....2..3..3..2..3....1..3..1..3..2

..1..3..1..0..0....1..0..0..1..3....1..1..1..3..0....1..1..1..1..3

CROSSREFS