OFFSET
1,1
COMMENTS
Subdiagonal 4 of A206455
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = sum{i in 0..floor((n+4)/(n+1))} ((-1)^i*(n+1)^((n+4) -(n+1)*i)*binomial((n+4) -n*i,i))
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 07 2012
STATUS
approved