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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
| 0,2
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COMMENTS
| 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]
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REFERENCES
| N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
H. Taylor, personal communication.
Cho, Chikun, Go: A Complete Introduction to the Game, Kiseido Publishers, Tokyo, 1997.
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LINKS
| Eric Weisstein's World of Mathematics, Go.
Wikipedia, Go.
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CROSSREFS
| Cf. A048289.
Sequence in context: A020539 A157442 A200558 * A098253 A031517 A192449
Adjacent sequences: A007562 A007563 A007564 * A007566 A007567 A007568
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KEYWORD
| nonn,fini,nice,hard
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
| 2 more terms from Arlin Anderson (starship1(AT)gmail.com)
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