A234405 T(n,k)=Number of (n+1)X(k+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 12

432, 5646, 5646, 66806, 204320, 66806, 829594, 6467216, 6467216, 829594, 10158894, 220295536, 496111352, 220295536, 10158894, 125160846, 7430382692, 44527292660, 44527292660, 7430382692, 125160846, 1539127906, 252526817148, 3864905915306

Offset

1,1

Comments

Table starts

......432.......5646.........66806...........829594............10158894

.....5646.....204320.......6467216........220295536..........7430382692

....66806....6467216.....496111352......44527292660.......3864905915306

...829594..220295536...44527292660...11015033292000....2640075449367340

.10158894.7430382692.3864905915306.2640075449367340.1708801212596211700

Links

R. H. Hardin, Table of n, a(n) for n = 1..60

Formula

Empirical for column k:

k=1: [linear recurrence of order 11]

k=2: [order 60]

Example

Some solutions for n=1 k=4
..4..5..2..0..2....6..2..1..0..0....1..4..0..4..4....0..3..0..6..0
..0..6..0..4..6....0..1..6..2..6....0..6..3..6..0....0..6..3..6..4

Crossrefs

Sequence in context: A174717 A235418 A235422 * A234400 A236279 A223595

Adjacent sequences: A234402 A234403 A234404 * A234406 A234407 A234408

Keyword

nonn,tabl

Author

R. H. Hardin, Dec 25 2013

Status

approved