OFFSET
1,2
COMMENTS
Row 4 of A297654.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 6*a(n-1) +15*a(n-2) +372*a(n-3) +1025*a(n-4) -46*a(n-5) -4101*a(n-6) -34244*a(n-7) -94085*a(n-8) -21654*a(n-9) +165356*a(n-10) +639904*a(n-11) +1471523*a(n-12) -895908*a(n-13) -4864047*a(n-14) -1270214*a(n-15) +3721117*a(n-16) +3725224*a(n-17) +1517589*a(n-18) -2895666*a(n-19) +611461*a(n-20) -1569477*a(n-21) -5436112*a(n-22) +6015995*a(n-23) -1131454*a(n-24) -3262066*a(n-25) +5806854*a(n-26) -3112355*a(n-27) -927930*a(n-28) +2386399*a(n-29) -1228290*a(n-30) -18124*a(n-31) +313018*a(n-32) -154300*a(n-33) +36726*a(n-34) +142*a(n-35) -2108*a(n-36) +652*a(n-37) +4*a(n-38).
EXAMPLE
Some solutions for n=5
..0..0..1..1..1. .0..0..0..0..0. .1..1..1..1..0. .0..0..1..1..0
..0..1..0..0..1. .1..0..0..0..0. .1..0..0..0..0. .0..1..0..0..1
..1..0..0..1..1. .0..1..1..0..1. .0..1..0..0..0. .0..0..1..0..1
..0..1..0..1..1. .1..0..0..1..1. .1..0..1..1..1. .0..0..1..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 02 2018
STATUS
approved