|
%I #5 Aug 12 2016 06:53:59
%S 9,86,3335,242563,34126530,5123428157,690238204068,85237750436721
%N Number of 5Xn arrays containing n copies of 0..5-1 with no element 1 greater than its north, west, northwest or southwest neighbor modulo 5 and the upper left element equal to 0.
%C Row 5 of A266825.
%e Some solutions for n=3
%e ..0..2..4....0..4..2....0..0..3....0..4..3....0..2..1....0..3..1....0..4..2
%e ..4..4..1....0..4..1....0..3..2....0..3..1....0..2..4....4..3..0....0..3..1
%e ..1..3..3....4..3..3....4..2..1....3..2..1....2..4..1....3..2..2....3..3..1
%e ..3..0..2....1..3..2....2..4..4....0..2..4....1..4..3....0..2..1....0..2..1
%e ..1..0..2....1..0..2....1..1..3....4..2..1....0..3..3....4..4..1....2..4..4
%Y Cf. A266825.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 04 2016
| 