OFFSET
0,2
COMMENTS
Diagonal sums of A112336. - Paul Barry, Sep 04 2005
FORMULA
a(n)=sum{k=0..floor(n/2), binomial(2(n-2k), n-2k)*2^k}.
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Paul Barry, Apr 24 2005
STATUS
approved