%I #6 Dec 18 2015 18:17:58
%S 1,36,107968,2590250609,1126396980640358,11855913847814563858262,
%T 2882997102757569110567142289632
%N Number of n X n 0..5 arrays with every nonzero element less than or equal to some NW, E or S neighbor
%C Diagonal of A203277
%e Some solutions for n=4
%e ..4..3..5..5....3..5..0..3....3..5..3..1....4..2..5..2....1..2..3..4
%e ..4..2..5..5....0..5..5..3....5..5..4..1....4..2..5..2....1..2..1..4
%e ..4..1..1..3....4..5..5..3....0..5..1..1....4..5..5..4....0..2..4..4
%e ..4..4..0..0....3..4..1..5....5..5..5..0....1..5..5..4....0..0..3..4
%K nonn
%O 1,2
%A _R. H. Hardin_ Dec 31 2011
|