A189149 - OEIS

%I #8 Oct 03 2025 05:02:55

%S 1,81,42689,20037184,5025299720

%N Number of nX6 array permutations with each element making zero or one knight moves.

%C Column 6 of A189150

%e Some solutions for 3X6

%e ..0.12.10..3..4.16...13.12..6.16.17..9....8..9..6..3..4.16....0..1.15.11.17..5

%e ..2..7..8.17.14.15...14..7..0..1.10.15...14..7.12.13..2.15...14..7..8.13.10..3

%e ..1.13..6.11..5..9....8..2..3.11..5..4....1..0.10.11..5.17...12..9..6..2.16..4

%K nonn

%O 1,2

%A _R. H. Hardin_, Apr 17 2011