%I #16 Jul 03 2017 21:56:20
%S 1,1,10,110,11000,1111000,1011010000,1001110110000,1001110110000000,
%T 1011000100110000000,1101110101111100000000,
%U 10011000010001010100000000,11100100011001111110000000000,101110011001010001100110000000000,1010001001100001110110010100000000000
%N a(n) = n! in binary.
%D Donald E. Knuth, Art of Computer Programming, Vol. 3, Sect. 5.3.1, Table 1.
%H Alois P. Heinz, <a href="/A036603/b036603.txt">Table of n, a(n) for n = 0..167</a>
%H <a href="/index/Fa#factorial">Index entries for sequences related to factorial numbers</a>
%t FromDigits/@(IntegerDigits[#, 2]&/@(Range[0, 15]!)) (* _Harvey P. Dale_, Feb 05 2012 *)
%t BaseForm[Range[0, 15]!, 2] (* _Alonso del Arte_, May 19 2017 *)
%Y Cf. A000142, A049606.
%K nonn,easy,base
%O 0,3
%A _N. J. A. Sloane_.