|
%I #6 Mar 26 2023 10:23:06
%S 48,3348,170868,8518564,421158558,20726134056,1022868051652,
%T 50561285393908,2503295874466950,124208845614214498,
%U 6167894219771885242,306989800251437858776,15307714522320704176494,764702726505274412235480
%N Number of n X 5 0..2 arrays with row sums equal and column sums unequal to adjacent columns.
%C Column 5 of A203491.
%e Some solutions for n=5
%e ..0..0..2..0..0....1..0..2..2..0....2..0..2..2..0....1..0..0..0..0
%e ..0..0..1..1..0....2..2..1..0..0....1..0..1..2..2....1..0..0..0..0
%e ..0..1..0..0..1....2..1..2..0..0....0..2..0..2..2....1..0..0..0..0
%e ..0..1..0..1..0....1..0..1..1..2....1..1..0..2..2....0..0..0..0..1
%e ..1..0..1..0..0....1..2..2..0..0....0..2..0..2..2....0..0..1..0..0
%Y Cf. A203491.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 02 2012
| 