

A285877


Number of possible chess games at the end of the nth ply starting without pawns.


7




OFFSET

0,2


COMMENTS

Gives the number of possible chess games where both sides start without pawns.
Does not include games which end in fewer than n plies.
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.
Initial terms computed using the Chesspresso engine.


LINKS

Table of n, a(n) for n=0..7.
Chesspresso<sup>TM</sup>.


CROSSREFS

Cf. A048987 (standard), A285873 (no queens), A285874 (no rooks), A285875 (no knights), A285876 (no bishops), A285878 (pawns and king).
Sequence in context: A238283 A240191 A231696 * A156087 A162919 A163290
Adjacent sequences: A285874 A285875 A285876 * A285878 A285879 A285880


KEYWORD

nonn,hard,more,fini


AUTHOR

Sean A. Irvine, Apr 28 2017


STATUS

approved



