%I A101067
%S A101067 0,2,3,9,14,24,68,158,165,260,441,1338,1796,2169,3162,3471,4916
%N A101067 Indices of primes in sequence defined by A(0) = 83, A(n) = 10*A(n-1) 
               + 13 for n > 0.
%C A101067 Numbers n such that (760*10^n - 13)/9 is a prime.
%C A101067 Numbers n such that digit 8 followed by n >= 0 occurrences of digit 4 
               followed by digit 3 is prime.
%C A101067 Numbers corresponding to terms <= 441 are certified primes.
%D A101067 Klaus Brockhaus and Walter Oberschelp, Zahlenfolgen mit homogenem Ziffernkern, 
               MNU 59/8 (2006), pp. 462-467.
%F A101067 a(n) = A103080(n) - 1. - Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 
               01 2008
%e A101067 84443 is prime, hence 3 is a term.
%o A101067 (PARI) a=83;for(n=0,1500,if(isprime(a),print1(n,","));a=10*a+13)
%o A101067 (PARI) for(n=0,1500,if(isprime((760*10^n-13)/9),print1(n,",")))
%Y A101067 Cf. A000533, A002275.
%Y A101067 Sequence in context: A116222 A048038 A113501 this_sequence A056645 A047171 
               A094557
%Y A101067 Adjacent sequences: A101064 A101065 A101066 this_sequence A101068 A101069 
               A101070
%K A101067 nonn,hard,more
%O A101067 1,2
%A A101067 Klaus Brockhaus (klaus-brockhaus(AT)t-online.de) and Walter Oberschelp 
               (oberschelp(AT)informatik.rwth-aachen.de), Nov 30 2004
%E A101067 5 more terms from Ryan Propper (rpropper(AT)stanford.edu), Jun 18 2005