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A125529 Number of Othello shapes with unique realization at the end of the n-th ply. 0
1, 4, 12, 52, 196, 932, 3944, 14020, 53556, 165584, 507656, 1251972, 2988984 (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: A149406 A149407 A149408 * A149409 A149410 A149411

Adjacent sequences:  A125526 A125527 A125528 * A125530 A125531 A125532

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 18 10:03 EDT 2020. Contains 337166 sequences. (Running on oeis4.)