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%I #6 May 04 2017 00:04:59
%S 1,50,2125,96062,4200525,191462298,8509434855,390020597683
%N Number of possible chess games at the end of the n-th ply starting without pawns.
%C Gives the number of possible chess games where both sides start without pawns.
%C Does not include games which end in fewer than n plies.
%C The initial terms exceed the corresponding terms in A048987, but this should eventually reverse and we should have A285877(n) <= A048987(n) for large enough n.
%C Initial terms computed using the Chesspresso engine.
%H <a href="http://www.chesspresso.org/">Chesspresso<sup>TM</sup></a>.
%Y Cf. A048987 (standard), A285873 (no queens), A285874 (no rooks), A285875 (no knights), A285876 (no bishops), A285878 (pawns and king).
%K nonn,hard,more,fini
%O 0,2
%A _Sean A. Irvine_, Apr 28 2017
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