OFFSET
1,1
EXAMPLE
a(1)=3307 is a term because this is Largest of eight consecutive primes i.e. 3251,3253,3257,3259,3271,3299,3301 and 3307, whose sum of digits is prime i.e. 3+2+5+1=11, 3+2+5+3=13, 3+2+5+7=17, 3+2+5+9=19, 3+2+7+1=13, 3+2+9+9=23,3+3+0+1=7 and 3+3+0+7=13.
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Shyam Sunder Gupta, May 14 2005
STATUS
approved