cp's OEIS Frontend

A083983 If k is a number with exactly two distinct decimal digits, say a and b, neither of which is 0 (i.e., a member of A101594), define the self-complement of k, SC(k), to be the number obtained by replacing a with b and vice versa. E.g. SC(232233) = 323322. Sequence contains primes p such that SC(p) is also a prime.

%I A083983 #13 Jul 29 2017 12:36:34
%S A083983 13,17,31,37,71,73,79,97,113,131,191,199,313,331,337,773,911,919,1171,
%T A083983 7717,11113,11119,11177,11717,33331,77171,77711,79999,97777,99991,
%U A083983 113111,131111,131113,131311,191999,199999,313133,313331,313333,331333,333737,377737
%N A083983 If k is a number with exactly two distinct decimal digits, say a and b, neither of which is 0 (i.e., a member of A101594), define the self-complement of k, SC(k), to be the number obtained by replacing a with b and vice versa. E.g. SC(232233) = 323322. Sequence contains primes p such that SC(p) is also a prime.
%H A083983 Arkadiusz Wesolowski, <a href="/A083983/b083983.txt">Table of n, a(n) for n = 1..10000</a>
%K A083983 base,nonn
%O A083983 1,1
%A A083983 _Amarnath Murthy_, May 22 2003
%E A083983 More terms from _David Wasserman_, Dec 07 2004
%E A083983 Offset corrected by _Arkadiusz Wesolowski_, Oct 17 2011