%I M3491 #20 Oct 04 2017 00:23:45
%S 4,14,104,1498,32876,950054,33801424,1426158002,69573363284,
%T 3851708875582,238539414903224,16338422029336970,1226232142235080636,
%U 100069553388048443990,8822157207387535459616,835558086134404986368866,84609374709488540680125092
%N Number of fanout-free Boolean functions of n variables.
%C Kodandapani and Seth give incorrect a(7) = 33304122 (a consequence of former incorrect A005742(7)).
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%H K. L. Kodandapani and S. C. Seth, <a href="/A005736/a005736.pdf">On combinational networks with restricted fan-out</a>, IEEE Trans. Computers, 27 (1978), 309-318. (Annotated scanned copy)
%H <a href="/index/Bo#Boolean">Index entries for sequences related to Boolean functions</a>
%F a(n) = A005615(n) + A005742(n). - _Sean A. Irvine_, Jul 21 2016
%K nonn
%O 1,1
%A _N. J. A. Sloane_
%E a(7) corrected and more terms from _Sean A. Irvine_, Jul 21 2016