A184663 T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with each 3X3 subblock singular

49246, 1352770, 1352770, 35802874, 119805310, 35802874, 742295518, 10047874534, 10047874534, 742295518, 17984702194, 564143008386, 2738040689182, 564143008386, 17984702194, 426536161750, 42151760266070, 452748537865658

Offset

1,1

Comments

Table starts

........49246........1352770........35802874.......742295518........17984702194

......1352770......119805310.....10047874534....564143008386.....42151760266070

.....35802874....10047874534...2738040689182.452748537865658.113762289821953494

....742295518...564143008386.452748537865658

..17984702194.42151760266070

.426536161750

Links

R. H. Hardin, Table of n, a(n) for n = 1..24

Example

Some solutions for 4X4
..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0
..0..0..0..2....0..0..0..2....3..0..0..1....2..0..0..0....3..0..0..3
..3..0..0..0....1..0..0..1....0..0..3..3....0..0..1..0....0..0..0..1
..1..1..1..2....1..0..1..0....2..0..3..0....1..0..1..1....1..1..0..1

Crossrefs

Sequence in context: A045085 A304020 A305696 * A184660 A054730 A253379

Adjacent sequences: A184660 A184661 A184662 * A184664 A184665 A184666

Keyword

nonn,tabl

Author

R. H. Hardin Jan 19 2011

Status

approved