OFFSET
1,1
COMMENTS
Column 7 of A260927.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = a(n-2) +91*a(n-4) +334*a(n-6) -779*a(n-8) -3685*a(n-10) +7226*a(n-12) +20922*a(n-14) -62627*a(n-16) -27148*a(n-18) +249596*a(n-20) -142965*a(n-22) -601602*a(n-24) +1185157*a(n-26) -586527*a(n-28) -552103*a(n-30) +736485*a(n-32) -49406*a(n-34) -272061*a(n-36) +63499*a(n-38) +50155*a(n-40) -1001*a(n-42) -4198*a(n-44) -4416*a(n-46) -1042*a(n-48) -51*a(n-50) -100*a(n-52) -10*a(n-54) for n>59.
EXAMPLE
Some solutions for n=4
..0..1..0..0..0..1..0..1..0....1..0..0..1..0..0..0..1..0
..0..0..1..0..1..0..1..0..0....1..0..1..0..1..0..1..0..0
..0..1..0..1..0..1..0..1..0....0..1..0..1..0..1..0..1..0
..1..0..1..0..0..0..1..0..1....1..0..1..0..1..0..1..0..1
..0..0..0..1..0..1..0..1..0....0..0..0..1..0..1..0..0..0
..1..0..1..0..1..0..1..0..0....0..1..1..0..0..0..1..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Aug 04 2015
STATUS
approved