OFFSET
0,4
FORMULA
a(n) = A175685(n,3), n>=1 .
MATHEMATICA
Table[Sum[Binomial[n - j - 1, j], {j, Floor[(n - 1)/2] - 3, Floor[(
n - 1)/2]}], {n, 0, 30}]
CROSSREFS
KEYWORD
nonn
AUTHOR
Roger L. Bagula, Dec 04 2010
STATUS
approved