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%I #14 Nov 05 2016 08:41:06
%S 1,44,142336,244698934716,347256965617453111707,
%T 683647218221456315461840833799588,
%U 2846969183281612697167894035560332610102537605107,35612941825082950044316879351953518880328546726186269125209259942000,1805164781998352977708541832242375664226097624365740577986086562708182817353463604362494621
%N Number of finite automata with n states, n input symbols and two output symbols.
%H Scott Burns, Marko Riedel, Markus Scheuer, <a href="http://math.stackexchange.com/questions/1968594/">Number of functions</a>, Math StackExchange.
%H Scott Burns, Marko Riedel, Markus Scheuer, <a href="http://math.stackexchange.com/questions/1993637/">Enumeration of finite automata</a>, Math StackExchange.
%H F. Harary and E. Palmer, <a href="http://dx.doi.org/10.1016/S0019-9958(67)91186-2">Enumeration of finite automata</a>, Information and Control, 10 (1967), 499-508.
%H Marko Riedel, <a href="/A277839/a277839.maple.txt">Maple code for A277839-A277844.</a>
%Y Cf. A277839, A277841, A277842, A277843, A277844.
%K nonn
%O 1,2
%A _Marko Riedel_, Nov 01 2016