OFFSET
1,1
COMMENTS
Column 4 of A299228.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 8*a(n-1) +10*a(n-2) +56*a(n-3) -203*a(n-4) -967*a(n-5) -1599*a(n-6) -306*a(n-7) +13357*a(n-8) +22549*a(n-9) +31178*a(n-10) -83309*a(n-11) -162226*a(n-12) -264159*a(n-13) +263535*a(n-14) +610742*a(n-15) +1107070*a(n-16) +51242*a(n-17) -80850*a(n-18) -556862*a(n-19) -37820*a(n-20) -3297808*a(n-21) -5672783*a(n-22) -6349408*a(n-23) +8730*a(n-24) +4479264*a(n-25) +6070656*a(n-26) +6316587*a(n-27) +11010346*a(n-28) +14031549*a(n-29) +7970488*a(n-30) -595394*a(n-31) -8486885*a(n-32) -8903264*a(n-33) -7863100*a(n-34) -16214548*a(n-35) -7990141*a(n-36) -5093572*a(n-37) -442625*a(n-38) +2985779*a(n-39) +2101405*a(n-40) +2884148*a(n-41) +435040*a(n-42) +998805*a(n-43) +634665*a(n-44) -37051*a(n-45) +2313*a(n-46) -57573*a(n-47) +10002*a(n-48) -124*a(n-49) for n>51
EXAMPLE
Some solutions for n=5
..0..0..0..0. .0..1..1..0. .0..0..1..1. .0..1..0..0. .0..1..1..1
..1..0..1..0. .0..0..0..1. .0..1..0..1. .0..1..0..1. .0..0..0..1
..1..1..1..1. .0..0..0..1. .0..1..1..1. .0..0..0..1. .0..0..0..0
..1..1..1..1. .1..0..0..0. .0..1..1..1. .0..0..0..1. .0..1..0..0
..1..0..0..1. .0..1..0..0. .1..0..0..1. .0..1..1..0. .0..0..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 05 2018
STATUS
approved