OFFSET
1,2
COMMENTS
Row 5 of A229694.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 48*a(n-1) - 960*a(n-2) + 10468*a(n-3) - 68685*a(n-4) + 282276*a(n-5) - 718624*a(n-6) + 997536*a(n-7) - 166467*a(n-8) - 2005784*a(n-9) + 3520224*a(n-10) - 1956780*a(n-11) - 1660207*a(n-12) + 3547332*a(n-13) - 2236608*a(n-14) - 28632*a(n-15) + 1014720*a(n-16) - 774528*a(n-17) + 307392*a(n-18) - 71424*a(n-19) + 9216*a(n-20) - 512*a(n-21) for n > 27.
EXAMPLE
Some solutions for n=3:
0 1 0 0 1 0 0 1 0 0 0 1 0 0 1 0 1 0 0 1 0
2 1 2 2 1 0 2 0 1 1 0 2 1 0 2 2 2 1 2 1 0
0 1 0 2 1 2 2 0 1 2 0 1 1 0 2 0 2 1 2 2 1
2 0 1 1 2 0 2 1 2 1 0 2 1 0 1 1 0 2 1 0 1
0 2 0 0 2 0 2 0 2 1 2 1 2 0 0 1 0 0 0 2 1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Sep 27 2013
STATUS
approved
