%I A057745
%S A057745 1,20,400,5362,72078,822518,9417683
%N A057745 Number of distinct chess positions after n plies including differences 
               due to availability of castling and en passant captures.
%C A057745 Definition: position = position with castling and en passant information, 
               diagram = position without castling and en passant information.
%H A057745 <a href="Sindx_Ch.html#chess">Index entries for sequences related to 
               number of chess games</a>
%Y A057745 Sequence in context: A089957 A019319 A083276 this_sequence A009964 A007577 
               A048987
%Y A057745 Adjacent sequences: A057742 A057743 A057744 this_sequence A057746 A057747 
               A057748
%K A057745 hard,nonn
%O A057745 0,2
%A A057745 Steven J. Edwards (chessnotation(AT)earthlink.net), Oct 29 2000 and Dec 
               16 2000.
%E A057745 Probably an erroneous version of A083276. - N. J. A. Sloane (njas(AT)research.att.com), 
               Mar 16 2007