%I A085415
%S A085415 1,4,3,3,3,3,3,4,3,12,3,3,3,4,3,3,12,3,3,8,3,4,3,12,3,3,3,3,7,8,4,3,8,
               4,
%T A085415 12,3,3,4,3,3,12,4,3,3,8,7,7,3,3,4,3,12,4,3,3,3,12,3,3,8,4,11,3,3,8,8,
               3,
%U A085415 4,3,4,3,15,3,3,4,3,12,8,11,4,24,4,8,3,4,3,15,3,3,7,8,12,8,11,4,3,12,8
%N A085415 Take prime[n] and continue adding 1, 2, ..., a(n) until one reaches a 
               prime.
%C A085415 Resulting primes in A085416. See also A085417, A085418.
%F A085415 Prime[n]+m*(1+m)/2 is a prime for some m>0.
%e A085415 a(2)=4 because prime[2]+(1+2+3+4)=3+10=13 is a prime
%Y A085415 Cf. A085416, A085417, A085418.
%Y A085415 Sequence in context: A143487 A031350 A031353 this_sequence A059124 A026858 
               A129344
%Y A085415 Adjacent sequences: A085412 A085413 A085414 this_sequence A085416 A085417 
               A085418
%K A085415 easy,nonn
%O A085415 1,2
%A A085415 Zak Seidov (zakseidov(AT)yahoo.com), Jun 29 2003