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A188910 T(n,k)=Number of nXk binary arrays without the pattern 0 1 0 diagonally or antidiagonally 7
2, 4, 4, 8, 16, 8, 16, 64, 64, 16, 32, 256, 400, 256, 32, 64, 1024, 2500, 2500, 1024, 64, 128, 4096, 16100, 21904, 16100, 4096, 128, 256, 16384, 103684, 204304, 204304, 103684, 16384, 256, 512, 65536, 665252, 1971216, 2895584, 1971216, 665252, 65536 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

....2.......4.........8..........16............32..............64

....4......16........64.........256..........1024............4096

....8......64.......400........2500.........16100..........103684

...16.....256......2500.......21904........204304.........1971216

...32....1024.....16100......204304.......2895584........44408896

...64....4096....103684.....1971216......44408896......1139265009

..128...16384....665252....18939904.....677191152.....28911561156

..256...65536...4268356...180741136...10097838144....705042350224

..512..262144..27399292..1723910400..150112575200..17119758585609

.1024.1048576.175880644.16461916416.2241104809024.419737861125025

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..507

EXAMPLE

Some solutions for 5X3

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

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

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

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

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

CROSSREFS

Column 2 is Column 1 squared

Column 3 is A181214

Sequence in context: A227442 A282316 A228986 * A189111 A181217 A223569

Adjacent sequences:  A188907 A188908 A188909 * A188911 A188912 A188913

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Apr 13 2011

STATUS

approved

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Last modified May 17 14:19 EDT 2022. Contains 353746 sequences. (Running on oeis4.)