%I A056605
%S A056605 0,0,0,2,1,5,4,9,10,25,46,121,240,619,1353,3286,7773,19046,45766
%N A056605 Number of stable n-celled patterns ("still lifes") in Conway's game of 
               Life (another version).
%H A056605 Mark D. Niemiec, <a href="http://home.interserv.com/~mniemiec/objcount.htm">
               Life Object Counts</a>
%H A056605 H. Koenig, <a href="http://www.pentadecathlon.com/LifeInfo/Objects/Class1/
               Stable.html">Stable Objects</a>
%e A056605 a(4)=2 because the block and the tub are the only 4-cell still lifes.
%Y A056605 See A019473 for the official version of this sequence.
%Y A056605 Sequence in context: A058344 A010582 A019473 this_sequence A091802 A144240 
               A119914
%Y A056605 Adjacent sequences: A056602 A056603 A056604 this_sequence A056606 A056607 
               A056608
%K A056605 nonn
%O A056605 1,4
%A A056605 N. J. A. Sloane (njas(AT)research.att.com), Aug 28 2000