%I #9 Jul 13 2013 12:03:49
%S 1,2,5,10,11,20,25,54,57,76,83,106,117,172,173,208,213,252,261,294,
%T 307,344,361,402,423,468,493,542,545,598,605,662,673,734,751,816,837,
%U 906,931,1004,1033,1190,1193,1278,1285,1374,1385,1478,1493,1590,1603,1704
%N Fixed points of the permutation A093506.
%C A093506(a(n)) = A187790(a(n)) = a(n).
%H Reinhard Zumkeller, <a href="/A187792/b187792.txt">Table of n, a(n) for n = 1..1000</a>
%o (Haskell)
%o a187792 n = a187792_list !! (n-1)
%o a187792_list = filter (\x -> a093506 x == x) [1..]
%K nonn
%O 1,2
%A _Reinhard Zumkeller_, Jan 06 2013