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A279305 T(n,k)=Number of nXk 0..2 arrays with no element equal to a strict majority of its king-move neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards. 6

%I #4 Dec 09 2016 15:35:40

%S 0,1,1,0,0,0,3,12,12,3,6,104,498,104,6,24,872,14908,14908,872,24,72,

%T 8064,396904,1160588,396904,8064,72,232,71680,10073670,85082276,

%U 85082276,10073670,71680,232,720,635312,246262496,6048938846,17784685668

%N T(n,k)=Number of nXk 0..2 arrays with no element equal to a strict majority of its king-move neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

%C Table starts

%C ....0.......1..........0............3.............6............24

%C ....1.......0.........12..........104...........872..........8064

%C ....0......12........498........14908........396904......10073670

%C ....3.....104......14908......1160588......85082276....6048938846

%C ....6.....872.....396904.....85082276...17784685668.3593187600532

%C ...24....8064...10073670...6048938846.3593187600532

%C ...72...71680..246262496.417999641840

%C ..232..635312.5863622944

%C ..720.5554240

%C .2232

%H R. H. Hardin, <a href="/A279305/b279305.txt">Table of n, a(n) for n = 1..60</a>

%F Empirical for column k:

%F k=1: a(n) = 6*a(n-1) -6*a(n-2) -16*a(n-3) +12*a(n-4) +24*a(n-5) +8*a(n-6) for n>8

%F k=2: [order 15] for n>16

%F k=3: [order 51] for n>54

%e Some solutions for n=3 k=4

%e ..0..0..1..1. .0..1..1..0. .0..1..1..1. .0..0..1..0. .0..1..1..0

%e ..1..0..1..0. .2..1..1..2. .2..2..0..1. .1..1..0..0. .2..0..2..1

%e ..2..2..0..1. .2..0..1..0. .1..0..0..2. .1..0..2..2. .0..0..0..2

%K nonn,tabl

%O 1,7

%A _R. H. Hardin_, Dec 09 2016

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Last modified April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)