A230182 Number of nX6 0..2 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value 2-x(i,j).

33, 4395, 596973, 82359177, 11393567289, 1576417829097, 218117038953009, 30179260908320577, 4175684607609841059, 577759089171442494555, 79940320493798468104653, 11060760378778721204329065

Offset

1,1

Comments

Column 6 of A230184

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Formula

Empirical: a(n) = 164*a(n-1) -3726*a(n-2) +24960*a(n-3) -32835*a(n-4) +212869*a(n-5) -1517270*a(n-6) -564971*a(n-7) +2420745*a(n-8) +12807149*a(n-9) +23530684*a(n-10) +90386570*a(n-11) -74066965*a(n-12) -97063095*a(n-13) -55279853*a(n-14) -59066858*a(n-15) +30982951*a(n-16) +40315301*a(n-17) +6275528*a(n-18) +1117439*a(n-19) +188525*a(n-20) +77985*a(n-21) -4848*a(n-22) +256*a(n-23) for n>24

Example

Some solutions for n=3
..0..2..0..0..2..0....0..2..0..1..1..2....0..2..0..1..1..1....0..2..0..2..2..0
..0..1..1..0..0..0....0..1..1..2..0..2....2..0..0..2..2..2....0..1..0..1..2..1
..1..2..0..2..2..0....2..0..2..2..0..2....1..1..2..0..0..2....1..1..1..1..1..1

Crossrefs

Sequence in context: A281933 A232292 A271334 * A350722 A354674 A229260

Adjacent sequences: A230179 A230180 A230181 * A230183 A230184 A230185

Keyword

nonn

Author

R. H. Hardin, Oct 11 2013

Status

approved