A219142 T(n,k)=Unchanging value maps: number of nXk binary arrays indicating the locations of corresponding elements unequal to no horizontal, diagonal or antidiagonal neighbor in a random 0..2 nXk array.

1, 2, 1, 4, 6, 1, 7, 18, 18, 1, 12, 39, 78, 51, 1, 21, 96, 281, 331, 142, 1, 37, 225, 1072, 1774, 1400, 405, 1, 65, 543, 4033, 10505, 11385, 5949, 1157, 1, 114, 1293, 15255, 59127, 101600, 73136, 25277, 3289, 1, 200, 3096, 57963, 341648, 872437, 989947

Offset: 1

Author

R. H. Hardin Nov 12 2012

Keywords

• nonn
• tabl

Comments

Table starts

.1......2........4..........7..........12...........21............37

.1......6.......18.........39..........96..........225...........543

.1.....18.......78........281........1072.........4033.........15255

.1.....51......331.......1774.......10505........59127........341648

.1....142.....1400......11385......101600.......872437.......7640541

.1....405.....5949......73136......989947.....12867295.....170792866

.1...1157....25277.....472638.....9702349....191707377....3862325048

.1...3289...107353....3050285....94937311...2851740545...87205791997

.1...9344...455938...19667721...927766394..42351530487.1964627314453

.1..26580..1936500..126807809..9067631046.628917557052

.1..75621..8224877..817795362.88653591037

.1.215076.34933256.5274346426

Examples

			Some solutions for n=3 k=4
..1..0..0..1....1..1..1..1....1..0..0..0....0..0..0..0....0..0..0..0
..0..0..0..0....1..0..1..0....1..0..0..1....0..0..0..1....1..0..1..0
..0..0..1..0....1..0..0..0....1..0..0..1....0..0..0..0....1..0..0..0
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..127

Crossrefs

Row 1 is A005251(n+2)