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%I #14 Nov 05 2014 05:22:04
%S 8,90,92,98,992,998,9992,9998,99992,99998,999992,999994,999998,
%T 9999992,9999998,99999992,99999998,999999992,999999998,9999999992,
%U 9999999998,99999999992,99999999998,999999999992,999999999994,999999999998,9999999999992
%N {Concatenation of n-1 and n+1}/n where n is a member of A069871.
%e 8 and 90 are members since 24/3 = 8, 810/9 = 90.
%e 999994 is in sequence because 999994 = 142856142858/142857 and 142857 is a member of A069871.
%Y Cf. A069871.
%K nonn,base
%O 0,1
%A _Amarnath Murthy_, Nov 01 2002
%E More terms from _Sascha Kurz_, Feb 10 2003
%E Inserted missing terms a(12) and a(25) by _Paolo P. Lava_, Nov 05 2014
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