%N In decimal expansion of Pi: smallest position between n and 2*n where the greatest number begins which is also contained in the first n positions.
%C 1 <= A086184(n) <= n <= a(n) <= 2*n.
%C A000796(A086184(n)+j) = A000796(a(n)+j), 0 <= j < A055642(A086183(n)).
%Y Cf. A000796, A055642, A086183, A086184.
%A _Reinhard Zumkeller_, Jul 11 2003