OFFSET
1,1
COMMENTS
Diagonal of A235280.
FORMULA
Empirical: a(n) = a(n-1) +23*a(n-2) -23*a(n-3) -200*a(n-4) +200*a(n-5) +820*a(n-6) -820*a(n-7) -1584*a(n-8) +1584*a(n-9) +1152*a(n-10) -1152*a(n-11) [see A235280 for an assumption].
EXAMPLE
Some solutions for n=4:
4 1 4 2 4 4 1 3 1 4 2 4 1 4 1 0 3 0 2 0
0 2 0 3 0 1 3 0 3 1 4 1 3 1 3 3 1 3 0 3
4 1 4 2 4 4 1 3 1 4 2 4 1 4 1 0 3 0 2 0
1 3 1 4 1 1 3 0 3 1 3 0 2 0 2 4 2 4 1 4
4 1 4 2 4 3 0 2 0 3 2 4 1 4 1 0 3 0 2 0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 05 2014
STATUS
approved