OFFSET
1,2
COMMENTS
Row 5 of A219063
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 28*a(n-1) +94*a(n-2) +949*a(n-3) +3114*a(n-4) +31484*a(n-5) +73965*a(n-6) -49970*a(n-7) -861423*a(n-8) -2331223*a(n-9) -1475373*a(n-10) -4115223*a(n-11) -2247887*a(n-12) -3519645*a(n-13) +5608868*a(n-14) +5678485*a(n-15) +16479296*a(n-16) +19323680*a(n-17) +2366277*a(n-18) -3018540*a(n-19) +674847*a(n-20) -5624307*a(n-21) -13414365*a(n-22) -165285*a(n-23) +1625886*a(n-24) -2842209*a(n-25) +1815534*a(n-26) +1949184*a(n-27) -64800*a(n-28) for n>29
EXAMPLE
Some solutions for n=3
..1..0..1....0..1..1....1..0..0....0..1..0....1..0..0....1..0..1....1..0..0
..0..0..1....0..0..1....1..0..1....0..0..0....1..0..1....0..0..0....0..0..1
..1..0..0....0..1..0....0..1..1....0..0..1....0..1..0....0..0..0....1..1..1
..0..0..0....1..1..0....1..1..0....0..0..1....0..0..1....0..0..0....1..1..0
..0..0..1....0..1..1....1..1..1....0..0..0....1..0..1....0..1..1....1..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 11 2012
STATUS
approved