OFFSET
0,2
COMMENTS
10^n may be retrieved as sum{k=0..n, mod(binomial(n,k),2)*a(k)}.
FORMULA
a(n)=sum{k=0..n, (-1)^A010060(n-k)*mod(binomial(n, k), 2)10^k}.
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Paul Barry, Dec 06 2004
EXTENSIONS
Definition and comment corrected by N. J. A. Sloane, Dec 20 2019
STATUS
approved