A124005 Number of different Othello positions at the end of the n-th ply.

1, 4, 12, 54, 236, 1288, 7092, 42614, 269352, 1743560, 11922442, 80209268, 562280115, 3772081046

Offset

0,2

Links

Table of n, a(n) for n=0..13.

Alain Brobecker, Othello and retrograde analysis (pdf)

Alain Brobecker, programs to generate sequences

Alain Brobecker, othello.c

Crossrefs

Cf. A124004, A124006.

Sequence in context: A149417 A151478 A125528 * A149418 A149419 A367450

Adjacent sequences: A124002 A124003 A124004 * A124006 A124007 A124008

Keyword

fini,hard,nonn

Author

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

Extensions

Edited by Charles R Greathouse IV, Oct 28 2009

a(10) from Dominic Hofer, Mar 28 2018

a(11)-a(13) from Dominic Hofer, Sep 28 2019

Status

approved