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A208078 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 0 1 0 vertically. 10
2, 4, 4, 6, 16, 6, 10, 36, 36, 9, 16, 100, 126, 81, 15, 26, 256, 510, 441, 225, 25, 42, 676, 1968, 2601, 1785, 625, 40, 68, 1764, 7722, 15129, 16065, 7225, 1600, 64, 110, 4624, 30114, 88209, 139605, 99225, 27880, 4096, 104, 178, 12100, 117708, 514089, 1228095 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..716

EXAMPLE

Table starts

..2....4......6......10.......16.........26..........42............68

..4...16.....36.....100......256........676........1764..........4624

..6...36....126.....510.....1968.......7722.......30114........117708

..9...81....441....2601....15129......88209......514089.......2996361

.15..225...1785...16065...139605....1228095....10751415......94313535

.25..625...7225...99225..1288225...17098225...224850025....2968615225

.40.1600..27880..572040.11204720..223058440..4412968520...87523832240

.64.4096.107584.3297856.97456384.2909955136.86610135616.2580469555456

...

Some solutions for n=4 k=3

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

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

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

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

CROSSREFS

Column 1 is A006498(n+2)

Column 2 is A189145(n+2)

Column 3 is A202399(n-2)

Row 1 is A006355(n+2)

Row 2 is A206981

Row 3 is A202954(n-2)

Sequence in context: A208028 A208369 A207717 * A208780 A206987 A207845

Adjacent sequences:  A208075 A208076 A208077 * A208079 A208080 A208081

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Feb 23 2012

STATUS

approved

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Last modified October 20 05:54 EDT 2021. Contains 348099 sequences. (Running on oeis4.)