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A230796 T(n,k)=Number of (n+3)X(k+3) 0..3 arrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value (x(i,j)+1) mod 4, and upper left element zero 9
144, 1024, 1024, 23104, 32912, 23104, 394384, 2096704, 2096704, 394384, 5475600, 84019184, 280495504, 84019184, 5475600, 84052224, 3164737536, 29033433664, 29033433664, 3164737536, 84052224, 1326125056, 128788339184, 2918671561744 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

......144.........1024...........23104.............394384...............5475600

.....1024........32912.........2096704...........84019184............3164737536

....23104......2096704.......280495504........29033433664.........2918671561744

...394384.....84019184.....29033433664......7664693723264......1994194775462464

..5475600...3164737536...2918671561744...1994194775462464...1365596520787459216

.84052224.128788339184.312443804166400.556151445605511168.991594953505024518400

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..111

FORMULA

Empirical for column k:

k=1: [order 15]

k=2: [order 64]

EXAMPLE

Some solutions for n=1 k=4

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

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

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

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

CROSSREFS

Sequence in context: A159748 A235957 A162669 * A230789 A165080 A165082

Adjacent sequences:  A230793 A230794 A230795 * A230797 A230798 A230799

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Oct 30 2013

STATUS

approved

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Last modified January 20 10:33 EST 2022. Contains 350472 sequences. (Running on oeis4.)