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A204153 T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with every 3X3 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..2 introduced in row major order 9
689, 3902, 3902, 22262, 28982, 22262, 127022, 156494, 156494, 127022, 724154, 891662, 844136, 891662, 724154, 4128422, 5117114, 4683434, 4683434, 5117114, 4128422, 23538722, 29610374, 26968208, 26497814, 26968208, 29610374, 23538722 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.......689......3902......22262......127022.......724154......4128422

......3902.....28982.....156494......891662......5117114.....29610374

.....22262....156494.....844136.....4683434.....26968208....152500334

....127022....891662....4683434....26497814....146747822....826613438

....724154...5117114...26968208...146747822....839477288...4563772922

...4128422..29610374..152500334...826613438...4563772922..25723818038

..23538722.169527242..864266300..4577683574..25275772916.138134688554

.134209022.970408838.4899355202.25733247662.139642744838.761533538294

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..179

EXAMPLE

Some solutions for n=4 k=3

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

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

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

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

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

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

CROSSREFS

Sequence in context: A057116 A025355 A025347 * A204146 A259512 A078877

Adjacent sequences:  A204150 A204151 A204152 * A204154 A204155 A204156

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Jan 11 2012

STATUS

approved

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Last modified December 7 22:03 EST 2021. Contains 349589 sequences. (Running on oeis4.)