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A208258 T(n,k)=Number of nXk 0..2 arrays with new values 0..2 introduced in row major order and no element equal to more than one of its immediate leftward or upward neighbors 7
1, 2, 2, 5, 12, 5, 14, 96, 96, 14, 41, 768, 2040, 768, 41, 122, 6144, 43344, 43344, 6144, 122, 365, 49152, 920928, 2445264, 920928, 49152, 365, 1094, 393216, 19566912, 137947632, 137947632, 19566912, 393216, 1094, 3281, 3145728, 415737216 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Table starts

....1.......2..........5.............14................41...................122

....2......12.........96............768..............6144.................49152

....5......96.......2040..........43344............920928..............19566912

...14.....768......43344........2445264.........137947632............7782199824

...41....6144.....920928......137947632.......20662697664.........3094987890864

..122...49152...19566912.....7782199824.....3094987890864......1230875651548608

..365..393216..415737216...439026252912...463586569433280....489518751475118880

.1094.3145728.8833148160.24767296501776.69438884409258336.194681408759751734640

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..364

EXAMPLE

Some solutions for n=4 k=3

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

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

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

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

CROSSREFS

Column 1 is A007051(n-1)

Column 2 is A204623(n-1)

Sequence in context: A077182 A230090 A286465 * A208872 A208581 A233357

Adjacent sequences:  A208255 A208256 A208257 * A208259 A208260 A208261

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Feb 24 2012

STATUS

approved

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Last modified June 27 13:59 EDT 2022. Contains 354896 sequences. (Running on oeis4.)