%I #9 Mar 31 2012 10:23:02
%S 3,4,4,5,6,6,6,6,6,7,7,7,7,7,7,8,8,8,8,8,8,8,8,8,9,9,9,9,9,9,9,9,9,9,
%T 9,9,9,9,9,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,
%U 10,10,10,10,10,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11
%N Number of digits of A077722(n) written in base 8.
%e a(5)=6 since A077722(5)=32833, which has an octal form of 100101 (6 digits).
%p s := 0:for n from 1 to 7000 do b := convert(n,base,2): q := sum(b[i]*8^(i-1),i=1..nops(b)): if(isprime(q)) then s := s+1:a[s] := nops(b):fi: od:seq(a[k],k=1..s);
%Y Cf. A077722.
%K nonn,base
%O 1,1
%A Francois Jooste (phukraut(AT)hotmail.com), Dec 23 2002
%E More terms from _Sascha Kurz_, Feb 10 2003