OFFSET
1,1
COMMENTS
The intersection with A020449 yields 1100101, 101101111, 111001001, 1011000101, 10111001011, 11001000001, 11011011001 etc. [R. J. Mathar, Jul 12 2010]
FORMULA
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Giovanni Teofilatto, Jul 09 2010
EXTENSIONS
Corrected and extended by Vincenzo Librandi and R. J. Mathar, Jul 12 2010
STATUS
approved