%I #5 Mar 31 2012 12:36:15
%S 1,1597,250000,106834338,33995627281,12362821462925,4329976369716644,
%T 1544933702911323688,548904049287782685569,195559483332882314913741,
%U 69650888604936997141340729,24818320628803632672710482237
%N Number of 8Xn array permutations with each element moving zero or one space horizontally or diagonally
%C Row 8 of A189449
%H R. H. Hardin, <a href="/A189456/b189456.txt">Table of n, a(n) for n = 1..31</a>
%e Some solutions for 8X3
%e ..0..2..1....0..1..2....0..1..2....0..2..1....0..2..1....0..2..1....0..1..2
%e ..7..4..5....3..8..5....3..4..5....3..5..4....7..5..4....3..5..4....4..3..5
%e ..6..3..8...10.11..4....6..8..7....6..7..8....6..3..8...10.11..8....6..8..7
%e ..9.14.11....9..6..7...10..9.11...13.10.11....9.10.11....9..6..7...10..9.11
%e .12.13.10...16.17.14...16.17.14...16..9.14...12.13.14...13.17.14...13.12.14
%e .16.15.17...15.12.13...15.12.13...15.12.17...19.15.17...15.12.16...19.20.17
%e .22.23.20...18.20.19...18.19.20...19.18.20...18.20.16...18.19.20...18.15.16
%e .21.18.19...22.21.23...21.22.23...21.23.22...21.22.23...22.21.23...22.21.23
%K nonn
%O 1,2
%A _R. H. Hardin_ Apr 22 2011