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%I #6 Sep 07 2014 12:49:52
%S 1,1,2,2,4,2,6,4,6,4,4,6,8,8,6,8,22,8,8,22,66,44,88,44,88,66,44,88,88,
%T 222,88,88,222,444,444,888,888,444,888,888,888,888,888,888,444444,
%U 666666,444444,888888,888888,666666,888888,888888,888888,888888,888888
%N Euler-phi applied to A096503 results in these decimal repdigits.
%e n=88888892, A000010(n)=44444444;
%e Regular solutions: if x=repdigit+1 is prime, then phi(x)=repdigit.
%o (PARI) lista(nn) = {for (n= 1, nn, phin = eulerphi(n); d = digits(e=eulerphi(n)); if (vecmin(d) == vecmax(d), print1(e, ", ")););} \\ _Michel Marcus_, Sep 07 2014
%K base,nonn
%O 1,3
%A _Labos Elemer_, Jul 12 2004
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