OFFSET
1,1
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 9*a(n-1) +59*a(n-2) -741*a(n-3) -680*a(n-4) +23970*a(n-5) -24980*a(n-6) -382080*a(n-7) +836736*a(n-8) +3002976*a(n-9) -9941184*a(n-10) -8688384*a(n-11) +53360640*a(n-12) -15759360*a(n-13) -107827200*a(n-14) +99532800*a(n-15).
EXAMPLE
Some solutions for n=5:
1 1 1 0 2 2 3 4 3 0 0 1 4 0 5 1 4 1 4 0 4
5 1 5 3 1 5 4 1 4 4 0 5 4 4 5 4 3 4 3 3 3
2 2 2 0 2 2 2 3 2 1 1 2 1 5 2 1 4 1 4 0 4
0 4 0 2 0 4 4 1 4 1 5 2 2 2 3 2 1 2 2 2 2
5 5 5 1 3 3 0 1 0 1 1 2 4 0 5 1 4 1 0 4 0
0 4 0 3 1 5 3 0 3 0 4 1 1 1 2 5 4 5 2 2 2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 29 2013
STATUS
approved