OFFSET
1,2
COMMENTS
Column 5 of A297986.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 2*a(n-1) +a(n-2) -a(n-3) +6*a(n-4) -9*a(n-5) -15*a(n-6) +2*a(n-7) -9*a(n-8) +6*a(n-9) +34*a(n-10) +45*a(n-11) +6*a(n-12) -21*a(n-13) -39*a(n-14) +2*a(n-15) -8*a(n-16) -38*a(n-17) -7*a(n-18) +26*a(n-19) -24*a(n-20) -48*a(n-21) +28*a(n-22) +23*a(n-23) -37*a(n-24) -4*a(n-25) +88*a(n-26) +34*a(n-27) -14*a(n-28) +7*a(n-29) +24*a(n-30) -2*a(n-31) -23*a(n-32) -6*a(n-33) -4*a(n-34) -3*a(n-35) -2*a(n-36) -2*a(n-37) for n>43
EXAMPLE
Some solutions for n=7
..0..0..0..1..1. .0..0..0..1..1. .0..1..0..0..0. .0..0..1..1..1
..0..1..1..0..1. .0..1..1..0..1. .1..1..1..0..1. .1..0..0..1..0
..1..0..1..0..0. .1..0..1..0..1. .0..0..0..0..0. .1..1..1..1..1
..1..0..1..0..1. .1..0..0..0..1. .0..1..1..1..1. .0..0..0..0..0
..1..0..1..1..1. .1..0..1..0..1. .1..0..0..0..1. .0..1..1..1..0
..1..0..1..0..1. .0..1..1..0..1. .1..0..1..1..0. .0..1..0..0..1
..1..1..0..0..0. .0..0..0..1..1. .1..1..0..0..0. .0..0..1..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 10 2018
STATUS
approved