OFFSET
1,2
COMMENTS
Row 3 of A281653.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 12*a(n-1) -44*a(n-2) +106*a(n-3) -394*a(n-4) +558*a(n-5) -1815*a(n-6) +1258*a(n-7) -3975*a(n-8) +1226*a(n-9) -3167*a(n-10) -2598*a(n-11) +4765*a(n-12) +1286*a(n-13) -710*a(n-14) +3446*a(n-15) +4320*a(n-16) -2580*a(n-17) -2693*a(n-18) +836*a(n-19) -456*a(n-20) -1676*a(n-21) -92*a(n-22) +1000*a(n-23) +316*a(n-24) -160*a(n-25) -64*a(n-26) for n>29
EXAMPLE
Some solutions for n=4
..0..1..0..1. .0..0..1..0. .0..1..0..1. .0..1..1..2. .0..1..0..1
..2..0..2..1. .2..1..1..2. .0..2..1..1. .2..2..1..0. .0..0..2..2
..2..0..1..2. .2..0..1..0. .1..2..0..1. .0..0..1..2. .2..1..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 26 2017
STATUS
approved