OFFSET
1,1
COMMENTS
LINKS
Jens Kruse Andersen, Table of n, a(n) for n = 1..10000
EXAMPLE
3*2 - 1 = 5 is prime. Thus 32 is a term of this sequence.
PROG
(PARI) for(n=1, 10^3, d=digits(n); p=prod(i=1, #d, d[i]); if(isprime(p-1), print1(n, ", ")))
CROSSREFS
KEYWORD
nonn,base,easy
AUTHOR
Derek Orr, Jul 01 2014
EXTENSIONS
Wrong term removed by Jens Kruse Andersen, Jul 13 2014
STATUS
approved