A206936 - OEIS

A206936

T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 horizontally and 0 1 1 vertically

2, 4, 4, 7, 16, 7, 13, 49, 49, 12, 24, 169, 211, 144, 20, 44, 576, 1153, 811, 400, 33, 81, 1936, 6139, 6837, 2791, 1089, 54, 149, 6561, 31529, 55088, 35277, 9055, 2916, 88, 274, 22201, 165783, 410000, 418876, 170409, 28081, 7744, 143, 504, 75076, 867545

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

OFFSET

1,1

COMMENTS

Table starts

..2....4.....7......13........24.........44..........81...........149

..4...16....49.....169.......576.......1936........6561.........22201

..7...49...211....1153......6139......31529......165783........867545

.12..144...811....6837.....55088.....410000.....3227589......25102409

.20..400..2791...35277....418876....4293648....48992069.....546661165

.33.1089..9055..170409...2967939...40316253...659747611...10405676997

.54.2916.28081..783557..20054092..348614952..8138711727..180107729045

.88.7744.84403.3498981.132811808.2858059128.95444167901.2968348851593

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..312

EXAMPLE

Some solutions for n=4 k=3

..0..0..1....1..1..1....0..1..1....1..1..0....0..0..1....0..0..1....0..1..0

..0..1..1....1..1..0....1..1..0....0..0..1....0..0..1....0..0..1....1..0..1

..0..0..1....1..0..1....0..1..1....0..1..0....0..0..1....1..0..1....0..1..0

..0..1..0....1..1..0....1..0..0....0..0..1....1..1..1....0..0..1....1..0..0

CROSSREFS

Column 1 is A000071(n+3)

Column 2 is A188516

Row 1 is A000073(n+3)

Row 2 is A085697(n+1)

Row 3 is A206872

Sequence in context: A206883 A206889 A188774 * A206871 A207088 A207182

Adjacent sequences: A206933 A206934 A206935 * A206937 A206938 A206939

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Feb 13 2012

STATUS

approved