A171940 - OEIS

%I #3 Mar 30 2012 17:28:13

%S 1,2,1228,3,41,4,100,15,11

%N Position in A171922 at which n first appears, or 0 if n never appears.

%H Hugo van der Sanden, <a href="/A171940/a171940.txt">Table of n, a(n) for n = 1..200, with -1 if n has not yet been found</a>

%K nonn,more

%O 1,2

%A _Hugo van der Sanden_, Oct 23 2010, Oct 24 2010