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A125528 Number of different Othello shapes at the end of the n-th ply. 0
1, 4, 12, 54, 220, 1130, 5568, 26966, 132037, 589652, 2601811, 10147378, 38356054 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..12.

Alain Brobecker, Othello and retrograde analysis (pdf)

Alain Brobecker, programs to generate sequences

CROSSREFS

Cf. A124004, A124005, A124006.

Sequence in context: A149416 A149417 A151478 * A124005 A149418 A149419

Adjacent sequences:  A125525 A125526 A125527 * A125529 A125530 A125531

KEYWORD

fini,hard,nonn

AUTHOR

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

EXTENSIONS

Edited by Charles R Greathouse IV, Oct 28 2009

a(10)-a(12) from Dominic Hofer, Mar 04 2020

STATUS

approved

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Last modified September 20 03:51 EDT 2020. Contains 337264 sequences. (Running on oeis4.)