OFFSET
1,1
COMMENTS
Column 4 of A298494.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 2*a(n-1) +a(n-2) +6*a(n-3) -14*a(n-4) -8*a(n-5) -12*a(n-6) +16*a(n-7) +24*a(n-8) +27*a(n-9) +102*a(n-10) +13*a(n-11) -99*a(n-12) -390*a(n-13) -297*a(n-14) +126*a(n-15) +559*a(n-16) +781*a(n-17) +129*a(n-18) -240*a(n-19) -723*a(n-20) -356*a(n-21) -201*a(n-22) -117*a(n-23) +59*a(n-24) -69*a(n-25) +401*a(n-26) +250*a(n-27) +595*a(n-28) +310*a(n-29) +46*a(n-30) -311*a(n-31) -636*a(n-32) -423*a(n-33) -181*a(n-34) +315*a(n-35) +344*a(n-36) +144*a(n-37) -84*a(n-38) -96*a(n-39) -12*a(n-40) +20*a(n-41) for n>43.
EXAMPLE
Some solutions for n=9
..0..0..1..0. .0..0..1..0. .0..0..1..1. .0..0..1..0. .0..0..1..1
..1..1..0..1. .1..1..0..1. .1..1..0..0. .1..1..0..0. .1..0..1..0
..1..0..1..0. .0..0..0..1. .0..1..1..1. .1..0..1..1. .0..1..0..1
..1..1..1..0. .1..0..1..0. .0..1..0..0. .0..0..0..0. .1..0..1..0
..1..1..1..0. .1..0..1..0. .0..1..1..1. .1..1..0..1. .0..1..0..1
..1..0..1..0. .1..0..1..0. .1..0..1..0. .0..0..1..1. .1..0..1..0
..0..0..1..1. .0..1..1..1. .1..0..1..0. .0..1..0..0. .0..1..0..1
..0..0..1..1. .0..1..0..0. .0..0..0..1. .0..0..0..1. .1..0..1..0
..1..0..1..0. .1..0..1..1. .1..1..0..1. .1..1..1..0. .0..1..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 20 2018
STATUS
approved