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A209684 T(n,k)=Number of n X n 0..k arrays with every element equal to a diagonal or antidiagonal reflection, and new values 0 upwards introduced in row major order 8
1, 1, 8, 1, 14, 96, 1, 15, 608, 4608, 1, 15, 1243, 246038, 331776, 1, 15, 1508, 2143147, 166075313, 95551488, 1, 15, 1549, 6716352, 6713848491, 1008907523438, 41278242816, 1, 15, 1551, 11315839, 66825091608, 336865786047147 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Table starts

......1.........1..........1...........1............1............1............1

......8........14.........15..........15...........15...........15...........15

.....96.......608.......1243........1508.........1549.........1551.........1551

...4608....246038....2143147.....6716352.....11315839.....13575355.....14164693

.331776.166075313.6713848491.66825091608.268997909000.584728215424.847881355388

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..988

EXAMPLE

Some solutions for n=3 k=3

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

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

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

CROSSREFS

Column 1 is A209586/2

Sequence in context: A124906 A298143 A181762 * A173988 A158893 A107929

Adjacent sequences:  A209681 A209682 A209683 * A209685 A209686 A209687

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Mar 11 2012

STATUS

approved

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Last modified July 15 14:33 EDT 2019. Contains 325031 sequences. (Running on oeis4.)