last term

[N. J. A. Sloane]

Dear Yasutoshi,

Thanks for drawing my attention to this excellent web page:

%H A002953 Jan Munch Pedersen, <a href="http://amicable@post.cybercity.dk">Known Unitary Amicabl\
e Pairs</a>

I have updated A002952, A002953 from it, and added a new sequence

%I A111904
%S A111904 0,0,1,1,5,12,59,107,269,641,1457,3553
%N A111904 Number of unitary amicable pairs in which the smallest member has n digits.
%O A111904 1,5
%H A111904 Jan Munch Pedersen, <a href="http://amicable@post.cybercity.dk">Known Unitary Amicabl\
e Pairs</a>
%K A111904 nonn,base
%Y A111904 Cf. A002952, A002953.
%A A111904 njas, Nov 24 2005
%E A111904 The next term, a(13), is at least 6664.


Neil