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A007565
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Number of Go games with n moves.
(Formerly M5447)
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3
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OFFSET
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0,2
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COMMENTS
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No value up to a(5) in this sequence is prime. The semiprimes in the sequence begin: 362 = 2 * 181, 6046709375131 = 19 * 318247861849. - Jonathan Vos Post, Apr 02 2011
The sequence is based on a 19 X 19 board which is empty in the initial state. The terms are the partial sums of A048289. - M. F. Hasler, Nov 24 2016
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REFERENCES
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Cho Chikun, Go: a Complete Introduction to the Game, Kiseido Publishers, Tokyo, 1997.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
H. Taylor, personal communication. [Scanned letter will be added. - N. J. A. Sloane, Nov 25 2016]
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LINKS
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Eric Weisstein's World of Mathematics, Go.
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FORMULA
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CROSSREFS
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KEYWORD
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nonn,fini,nice,hard
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AUTHOR
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EXTENSIONS
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2 more terms from Arlin Anderson (starship1(AT)gmail.com)
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STATUS
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approved
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