OFFSET
1,1
COMMENTS
Most of the values are conjectural, so far not much is really proved about the function A247889. - M. F. Hasler and Robert Israel, May 18 2017
PROG
(PARI) for(n=0, 199, if(!A247889(n), print1(n, ", "))) \\ Derek Orr, Sep 25 2014, edited by M. F. Hasler, May 18 2017
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Paolo P. Lava and Giorgio Balzarotti, Oct 30 2006
EXTENSIONS
106 removed by Robert Israel, May 18 2017
STATUS
approved