OFFSET
1,1
COMMENTS
Column 2 of A232579
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 4*a(n-1) +133*a(n-2) +898*a(n-3) +1301*a(n-4) -5200*a(n-5) -10703*a(n-6) +3428*a(n-7) -1089631*a(n-8) -199930*a(n-9) +4385413*a(n-10) +20845860*a(n-11) +28031898*a(n-12) -220854540*a(n-13) -102914934*a(n-14) +1092711772*a(n-15) -376388671*a(n-16) -1898829704*a(n-17) +2499228555*a(n-18) -1362129714*a(n-19) -3015536791*a(n-20) +6548644648*a(n-21) +1241905557*a(n-22) -13074485456*a(n-23) +20315868387*a(n-24) -26549602146*a(n-25) +13961634587*a(n-26) -8938694500*a(n-27) +1010632952*a(n-28) +504496900*a(n-29) -528346112*a(n-30) +145246080*a(n-31) +2522156*a(n-32) -33648304*a(n-33) -14570624*a(n-34) +13149248*a(n-35) -3183872*a(n-36) +239616*a(n-37) for n>38
EXAMPLE
Some solutions for n=3
..2..0..2....0..2..1....2..1..0....0..1..2....0..1..0....1..0..1....2..1..2
..1..1..0....1..0..2....1..0..2....2..0..0....0..2..2....2..2..0....0..1..0
..2..2..2....2..2..1....2..2..1....0..2..1....1..0..1....0..1..1....1..2..1
..1..0..1....0..1..0....1..0..2....1..2..0....2..2..0....2..2..0....2..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 26 2013
STATUS
approved