login
A301889
Number of 6Xn 0..1 arrays with every element equal to 0, 1 or 3 horizontally or antidiagonally adjacent elements, with upper left element zero.
1
32, 233, 917, 2340, 7869, 46079, 223869, 981222, 4188971, 19744757, 93794562, 441318698, 2061633703, 9717028077, 46010651829, 218113415765, 1034263991109, 4906086778690, 23287878252238, 110581556348153, 525174708228782
OFFSET
1,1
COMMENTS
Row 6 of A301884.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..1..1..0. .0..1..1..0..1. .0..0..0..1..0. .0..1..0..1..0
..0..1..0..0..1. .0..0..1..0..1. .0..1..1..0..1. .0..1..0..1..0
..0..1..0..0..1. .1..0..1..0..1. .0..1..1..0..1. .1..0..1..0..1
..1..0..1..0..1. .1..0..1..0..1. .1..0..1..0..1. .1..0..1..0..1
..1..0..1..1..0. .0..1..1..0..1. .1..1..0..0..1. .1..1..1..0..1
..1..0..1..0..1. .1..0..1..1..1. .1..0..1..0..0. .0..0..1..1..1
CROSSREFS
Cf. A301884.
Sequence in context: A301795 A301968 A208641 * A302085 A229400 A223250
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 28 2018
STATUS
approved