OFFSET
1,1
COMMENTS
Probably finite.
The next term (if it exists) is > 10000000. - Larry Reeves (larryr(AT)acm.org), Oct 12 2003
The next term (if it exists) is > 100000000. - Michel Marcus, Jul 14 2013
The next term (if it exists) is > 10^400. - Nathan Fox, Mar 09 2016
Every term in this sequence other than 4 is prime. - Nathan Fox, Mar 09 2016
No more terms through 10^5000. - Jon E. Schoenfield, Oct 13 2018
PROG
(PARI) isok(n) = {for (b=3, n-1, digs = digits(n, b); for (j=1, #digs, if (digs[j] == 0, return (0)); ); ); return (1); } \\ Michel Marcus, Jul 14 2013
CROSSREFS
KEYWORD
base,nonn,more
AUTHOR
Naohiro Nomoto, Apr 18 2002
EXTENSIONS
Corrected by Larry Reeves (larryr(AT)acm.org), Oct 12 2003
STATUS
approved