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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, 129698048 (list; graph; refs; listen; history; text; internal format)
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
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, Dec 30 2006
EXTENSIONS
Edited by Charles R Greathouse IV, Oct 28 2009
a(10)-a(12) from Dominic Hofer, Mar 04 2020
a(13) from Dominic Hofer, Feb 11 2022
STATUS
approved

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Last modified May 21 17:21 EDT 2024. Contains 372738 sequences. (Running on oeis4.)