OFFSET
1,2
COMMENTS
LINKS
N. J. A. Sloane, Table of n, a(n) for n = 1..10000
N. J. A. Sloane, Maple program
FORMULA
Empirical: For k >= 0, a(4k+1)=1, a(4k+3)=0; for k >= 1, a(2k)=2*A109812(k).
EXAMPLE
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jun 02 2018
STATUS
approved