%I #13 Feb 25 2020 02:09:57
%S 1,20,400,8902,197281,4865577,119057155,3194833218
%N Number of chess games with n plies (another version).
%H Andrei Asinowski, Axel Bacher, Cyril Banderier, Bernhard Gittenberger, <a href="https://lipn.univ-paris13.fr/~banderier/Papers/patterns2019.pdf">Analytic combinatorics of lattice paths with forbidden patterns, the vectorial kernel method, and generating functions for pushdown automata</a>, Laboratoire d'Informatique de Paris Nord (LIPN 2019).
%H <a href="/index/Ch#chess">Index entries for sequences related to number of chess games</a>
%Y Cf. A048987.
%K hard,fini,nonn
%O 0,2
%A Johan Boye (jb(AT)sectra.se)
%E I am not sure of the precise rules that were used to compute these numbers. A048987 is the preferred version of this sequence. - _N. J. A. Sloane_.