cp's OEIS Frontend

A284455 T(n,k) = Number of n X k 0..1 arrays with the number of 1's king-move adjacent to some 0 one less than the number of 0's adjacent to some 1.

%I A284455 #6 Apr 05 2020 20:16:51
%S A284455 0,0,0,1,0,1,2,0,0,2,6,0,102,0,6,12,0,250,250,0,12,28,0,5253,3384,
%T A284455 5253,0,28,56,0,16478,54248,54248,16478,0,56,119,0,278315,824052,
%U A284455 4190874,824052,278315,0,119,236,0,1019120,12957944,52793160,52793160,12957944,1019120
%N A284455 T(n,k) = Number of n X k 0..1 arrays with the number of 1's king-move adjacent to some 0 one less than the number of 0's adjacent to some 1.
%C A284455 Table starts
%C A284455 ...0.0........1..........2.............6..............12.................28
%C A284455 ...0.0........0..........0.............0...............0..................0
%C A284455 ...1.0......102........250..........5253...........16478.............278315
%C A284455 ...2.0......250.......3384.........54248..........824052...........12957944
%C A284455 ...6.0.....5253......54248.......4190874........52793160.........3478866516
%C A284455 ..12.0....16478.....824052......52793160......3177012844.......197373621124
%C A284455 ..28.0...278315...12957944....3478866516....197373621124.....45913351929099
%C A284455 ..56.0..1019120..203401448...51105257464..12262301470824...3020610942888634
%C A284455 .119.0.15188955.3209101642.3013637890236.765844185617960.635171432700031740
%H A284455 R. H. Hardin, <a href="/A284455/b284455.txt">Table of n, a(n) for n = 1..161</a>
%e A284455 Some solutions for n=4, k=4
%e A284455 ..0..0..1..1. .0..1..1..1. .0..0..1..1. .1..1..1..0. .1..0..1..1
%e A284455 ..1..0..1..1. .0..1..1..0. .0..0..0..0. .1..0..0..1. .0..1..1..0
%e A284455 ..0..0..0..0. .1..1..0..0. .0..1..1..1. .0..0..0..0. .1..0..0..0
%e A284455 ..1..1..0..1. .0..0..0..0. .0..1..1..1. .1..1..0..0. .0..1..0..0
%K A284455 nonn,tabl
%O A284455 1,7
%A A284455 _R. H. Hardin_, Mar 27 2017