OFFSET
1,1
COMMENTS
Column 4 of A318350.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = a(n-1) +2*a(n-3) +2*a(n-4) +5*a(n-5) +4*a(n-7) +3*a(n-8) +a(n-9) -9*a(n-10) -11*a(n-11) -41*a(n-12) -29*a(n-13) -52*a(n-14) +4*a(n-15) +7*a(n-16) +37*a(n-17) +13*a(n-18) +28*a(n-19) +32*a(n-20) -4*a(n-21) +39*a(n-22) +8*a(n-23) +6*a(n-24) +37*a(n-25) -23*a(n-26) -3*a(n-27) -20*a(n-28) -24*a(n-29) -12*a(n-30) -8*a(n-31) -4*a(n-32) +4*a(n-33) +8*a(n-35) -4*a(n-36) +4*a(n-37) for n>45
EXAMPLE
Some solutions for n=5
..0..0..0..0. .0..0..0..1. .0..0..0..0. .0..0..0..0. .0..0..0..0
..0..0..0..0. .0..0..0..0. .0..0..0..0. .1..0..1..0. .0..0..0..0
..0..0..0..0. .0..0..0..0. .0..0..0..0. .1..0..0..0. .0..0..1..0
..0..0..0..0. .0..0..0..0. .0..1..0..0. .0..1..1..0. .0..0..0..0
..0..0..0..0. .1..0..0..0. .0..0..0..0. .1..1..1..1. .0..0..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Aug 24 2018
STATUS
approved