OFFSET
1,2
COMMENTS
Column 7 of A301906.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 19*a(n-1) -129*a(n-2) +266*a(n-3) +1113*a(n-4) -7787*a(n-5) +16342*a(n-6) +7083*a(n-7) -129016*a(n-8) +332445*a(n-9) -231596*a(n-10) -894953*a(n-11) +2912737*a(n-12) -3222398*a(n-13) -2103447*a(n-14) +12042025*a(n-15) -15194193*a(n-16) -250412*a(n-17) +24253854*a(n-18) -27506576*a(n-19) +1889508*a(n-20) +22587616*a(n-21) -20220872*a(n-22) +2087728*a(n-23) +8489920*a(n-24) -6518528*a(n-25) +1174848*a(n-26) +1096960*a(n-27) -792192*a(n-28) +188672*a(n-29) -9216*a(n-30) for n>33
EXAMPLE
Some solutions for n=5
..0..1..1..0..0..0..1. .0..1..1..1..1..1..1. .0..1..1..0..0..0..0
..1..1..0..0..0..0..0. .1..1..0..1..1..1..0. .1..1..0..0..1..0..0
..0..1..1..1..1..0..0. .1..1..1..0..0..1..1. .0..1..0..0..1..0..0
..1..1..0..1..1..0..0. .1..1..0..0..1..1..0. .0..1..0..0..1..0..0
..1..1..1..1..0..0..1. .1..1..1..1..0..1..0. .0..1..0..0..0..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 28 2018
STATUS
approved