OFFSET
1,1
COMMENTS
Column 5 of A237249
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 601964*a(n-4) -147113300164*a(n-8) +18655117037895360*a(n-12) -1293038821096525341376*a(n-16) +46410219023590225771445760*a(n-20) -674073521525048603011166105600*a(n-24) +411303559317872351216848896000*a(n-28) +21059951299587196983422156800000*a(n-32) +20445970197492715314216960000000*a(n-36) for n>41
EXAMPLE
Some solutions for n=1
..1..2..2..1..2..2....0..1..1..2..0..1....1..1..1..2..0..1....2..0..0..1..1..0
..1..2..1..0..0..2....1..1..1..1..1..1....2..0..1..2..1..0....0..2..1..2..1..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 05 2014
STATUS
approved