OFFSET
1,1
LINKS
Charles R Greathouse IV, Nov 16 2009, Table of n, a(n) for n = 1..10000
EXAMPLE
11=B 13=D 113=AD 131=BB
PROG
From Michael B. Porter, Dec 01 2009: (Start)
(PARI) mindigit(n, b) = if(n<b, n, min(mindigit(floor(n/b), b), n%b))
isA140969(n) = (isprime(n) && mindigit(n, 16) > 9) (End)
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Gil Broussard, Jul 27 2008
EXTENSIONS
Edited by N. J. A. Sloane, Nov 15 2009
STATUS
approved