%I
%S 1,1,12,11,22,11,24,13,22,31,42,11,24,13,22,31,42,11,24,13,22,31,46,
%T 15,24,33,42,51,62,11,26,15,24,33,42,51,64,13,22,31,42,11,24,13,22,31,
%U 46,15,24,33,42,51,66,15,24,33,42,51,62,11,26,15,24,33,42,51,64,13,22,31
%N Concatenate distance to previous prime & distance to next prime. If no previous prime, use 0.
%e a(7)=24 as 5 is largest previous prime to 7, distance is 2, & 11 is smallest next prime to 7, distance 4. Concatenate 2 & 4 gives 24.
%K nonn,base
%O 1,3
%A _Gerald Hillier_, Jan 21 2010
