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A299393 T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero. 5

%I

%S 1,2,2,3,4,3,5,3,3,5,8,13,3,13,8,13,34,9,9,34,13,21,73,17,63,17,73,21,

%T 34,203,48,119,119,48,203,34,55,594,94,243,508,243,94,594,55,89,1443,

%U 234,1086,934,934,1086,234,1443,89,144,4013,589,2782,6254,2483,6254,2782,589

%N T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero.

%C Table starts

%C ..1....2...3....5......8.....13......21.......34........55.........89

%C ..2....4...3...13.....34.....73.....203......594......1443.......4013

%C ..3....3...3....9.....17.....48......94......234.......589.......1333

%C ..5...13...9...63....119....243....1086.....2782......8509......31229

%C ..8...34..17..119....508....934....6254....28963....110704.....623533

%C .13...73..48..243....934...2483...11240....48286....252027....1266960

%C .21..203..94.1086...6254..11240..112188...649720...3226442...27461474

%C .34..594.234.2782..28963..48286..649720..5884463..35846074..446459559

%C .55.1443.589.8509.110704.252027.3226442.35846074.286590596.3734068803

%H R. H. Hardin, <a href="/A299393/b299393.txt">Table of n, a(n) for n = 1..219</a>

%F Empirical for column k:

%F k=1: a(n) = a(n-1) +a(n-2)

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

%F k=3: [order 17] for n>18

%F k=4: [order 71] for n>72

%e Some solutions for n=5 k=7

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

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

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

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

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

%Y Column 1 is A000045(n+1).

%Y Column 2 is A297901.

%Y Column 3 is A298315.

%Y Column 4 is A298316.

%K nonn,tabl

%O 1,2

%A _R. H. Hardin_, Feb 09 2018

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Last modified March 2 09:23 EST 2021. Contains 341746 sequences. (Running on oeis4.)