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A220254 T(n,k)=Sum of neighbor maps: number of nXk binary arrays indicating the locations of corresponding elements equal to the sum mod 3 of their king-move neighbors in a random 0..2 nXk array 5

%I #4 Dec 08 2012 16:49:04

%S 2,2,2,8,16,8,16,48,48,16,24,256,324,256,24,64,928,4096,4096,928,64,

%T 128,4096,31744,45792,31744,4096,128,232,15872,262144,1048576,1048576,

%U 262144,15872,232,512,65536,2011776,16777216,33350528,16777216,2011776,65536

%N T(n,k)=Sum of neighbor maps: number of nXk binary arrays indicating the locations of corresponding elements equal to the sum mod 3 of their king-move neighbors in a random 0..2 nXk array

%C Table starts

%C ....2......2........8........16.........24.........64.......128........232

%C ....2.....16.......48.......256........928.......4096.....15872......65536

%C ....8.....48......324......4096......31744.....262144...2011776...16728064

%C ...16....256.....4096.....45792....1048576...16777216.268435456.4294967296

%C ...24....928....31744...1048576...33350528.1073741824

%C ...64...4096...262144..16777216.1073741824

%C ..128..15872..2011776.268435456

%C ..232..65536.16728064

%C ..512.259584

%C .1024

%H R. H. Hardin, <a href="/A220254/b220254.txt">Table of n, a(n) for n = 1..59</a>

%e Some solutions for n=3 k=4

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

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

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

%Y Column 1 is A220172

%K nonn,tabl

%O 1,1

%A _R. H. Hardin_ Dec 08 2012

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)