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A124004 Number of possible Reversi games at the end of the n-th ply. 4
1, 4, 12, 56, 244, 1396, 8200, 55092, 390216, 3005288, 24571056, 212258216, 1939879668, 18429618408, 184041761768, 1891831332208, 20301171282452, 222742563853912, 2534535926617852, 29335558770589276 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Reversi is the older name for the game. Othello is a more recent trade name.

LINKS

Table of n, a(n) for n=0..19.

Alain Brobecker, Othello and retrograde analysis (pdf)

Alain Brobecker, programs to generate sequences

Alain Brobecker, othello.c

CROSSREFS

Cf. A124005, A124006.

Sequence in context: A149423 A295496 A164575 * A243785 A019266 A009114

Adjacent sequences:  A124001 A124002 A124003 * A124005 A124006 A124007

KEYWORD

fini,hard,nonn

AUTHOR

Alain Brobecker (abrobecker(AT)yahoo.com), Nov 01 2006, Dec 30 2006

EXTENSIONS

4 more terms from Paul Byrne, Mar 08 2008

Edited by Charles R Greathouse IV, Oct 28 2009

1 more term from Dominic Hofer, Oct 21 2014

STATUS

approved

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Last modified June 4 06:41 EDT 2020. Contains 334822 sequences. (Running on oeis4.)