|
%I #8 Nov 20 2014 10:35:35
%S 1,1519,1644254,781413998,307215779816,133980449920831,
%T 61265314914283103,27766798777082484160,12536363302159604534646,
%U 5684379185768992022017820,2583784784086688090876271693
%N Number of n X 5 0..6 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors.
%C Column 5 of A203389.
%e Some solutions for n=4:
%e ..2..2..3..3..3....0..3..6..6..3....6..6..3..0..0....3..3..6..6..5
%e ..6..6..3..0..3....2..3..6..6..3....6..6..4..5..5....4..4..6..6..6
%e ..6..6..0..4..4....2..5..5..3..0....5..6..5..6..6....4..5..5..6..6
%e ..3..3..1..4..4....0..5..5..0..0....4..6..6..6..6....4..5..5..3..0
%Y Cf. A203389.
%K nonn
%O 1,2
%A _R. H. Hardin_, Jan 01 2012
| 