Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
%I #5 Dec 15 2017 17:36:22
%S 1,2,4,8,14,16,31,41,58,83,194,238,251,938,998,1244,2273,2291
%N Numbers n such that Fibonacci(n) concatenated with its 10's complement is prime.
%C Larger values not certified prime.
%e a(7)=31 because Fibonacci(31)=1346269; 10000000-1346269 = 8653731,
%e and 13462698653731 is prime.
%Y Cf. A084620.
%K base,more,nonn
%O 1,2
%A _Jason Earls_, Jun 01 2003