A189353 Number of nX7 array permutations with each element moving one space diagonally, horizontally or vertically.

0, 2005, 229248, 94635005, 24728774144, 7675175968337, 2239546267804672, 669245368116765065, 198265824869143635104, 58936758437348449273685, 17497862834694963378124992, 5197536868658118835508778253

Offset: 1

Author

R. H. Hardin Apr 20 2011

Keywords

• nonn

Comments

Column 7 of A189355

Examples

			Some solutions for 3X7
..1..2..3..4.11..6.13....1..2..3.10..5..4.13....1..0.10..2.11.12..5
..0..7.16..9.10.20..5...14..0..8.17.18.11..6...14..7.17.18..3..4..6
.15.14..8.18.17.12.19...15..7..9.16.19.20.12...15.16..8..9.19.20.13
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..90