OFFSET
1,5
COMMENTS
Equivalent to all 1s connected only in 2X2 blocks
Table starts
.1..1...1...1....1.....1......1.......1.......1........1.........1..........1
.1..2...3...4....6.....9.....13......19......28.......41........60.........88
.1..3...5...7...13....23.....37......63.....109......183.......309........527
.1..4...7..12...26....51.....97.....193.....380......741......1456.......2860
.1..6..13..26...72...175....407....1005....2450.....5893.....14318......34780
.1..9..23..51..175...513...1397....4133...12075....34521....100047.....290287
.1.13..37..97..407..1397...4531...16029...55471...188735....651517....2246015
.1.19..63.193.1005..4133..16029...68662..286079..1170324...4869491...20218182
.1.28.109.380.2450.12075..55471..286079.1429824..6989477..34856362..173451524
.1.41.183.741.5893.34521.188735.1170324.6989477.40840428.243887497.1451641573
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..839
EXAMPLE
Some solutions for 6X5
..0..0..0..0..0....0..0..0..0..0....0..0..0..0..0....0..0..0..0..0
..0..0..0..0..0....0..0..1..1..0....1..1..0..0..0....0..0..0..0..0
..0..0..1..1..0....0..0..1..1..0....1..1..0..0..0....0..0..0..0..0
..0..0..1..1..0....0..0..0..0..0....0..0..0..0..0....0..0..0..0..0
..0..0..0..0..0....1..1..0..0..0....0..0..0..0..0....0..1..1..0..0
..0..0..0..0..0....1..1..0..0..0....0..0..0..0..0....0..1..1..0..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jan 04 2011
STATUS
approved