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A221087 T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor 13
0, 1, 0, 2, 4, 0, 4, 24, 16, 0, 8, 169, 270, 64, 0, 16, 1155, 6889, 3024, 256, 0, 32, 7921, 154440, 279841, 33858, 1024, 0, 64, 54288, 3538161, 20489472, 11363641, 379080, 4096, 0, 128, 372100, 80655102, 1572836281, 2714713664, 461433361, 4244238 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

Table starts

.0.......1............2...................4.......................8

.0.......4...........24.................169....................1155

.0......16..........270................6889..................154440

.0......64.........3024..............279841................20489472

.0.....256........33858............11363641..............2714713664

.0....1024.......379080...........461433361............359601021696

.0....4096......4244238.........18736955689..........47632473997312

.0...16384.....47519136........760832274049........6309330479063040

.0...65536....532031490......30894332043289......835724490894491648

.0..262144...5956705656....1254494297783281...110698808144126017536

.0.1048576..66692184462...50939956897994761.14662997339235235397632

.0.4194304.746695862640.2068466324059544161

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..126

EXAMPLE

Some solutions for n=3 k=4

..0..1..2..0....1..1..1..0....0..1..1..0....1..1..0..1....0..2..1..1

..1..3..1..1....0..4..0..0....0..3..3..0....1..3..1..0....2..1..1..1

..0..1..2..0....2..1..2..0....0..2..2..0....1..0..2..1....1..0..1..1

CROSSREFS

Column 2 is A000302(n-1)

Row 1 is A000079(n-2)

Sequence in context: A079985 A059226 A221655 * A279580 A197513 A097666

Adjacent sequences:  A221084 A221085 A221086 * A221088 A221089 A221090

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Jan 01 2013

STATUS

approved

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Last modified January 22 05:19 EST 2022. Contains 350481 sequences. (Running on oeis4.)