

A284975


a(n) is the number of selfconjugate partitions of n which represent Chomp positions with SpragueGrundy value 4.


0



0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 2, 0, 3, 0, 1, 0, 2, 2, 2, 0, 6, 0, 2, 5, 5, 6, 8, 5, 6, 6, 6, 7, 8, 12, 10, 10, 16, 12, 20, 12, 17, 22, 16, 27, 21, 34, 25, 35, 29, 43, 42, 48, 38, 67
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OFFSET

1,26


COMMENTS

The number of all Chomp positions with SpragueGrundy value 4 are given in A284690.


REFERENCES

P. M. Grundy, Mathematics and games, Eureka 2 (1939), 68; reprinted (1964), Eureka 27, 911.
R. Sprague, Über mathematische Kampfspiele, Tohoku Math. J. 41 (1936), 438444.
R. Sprague, Über zwei Abarten von Nim, Tohoku Math. J. 43 (1937), 351354.


LINKS

Table of n, a(n) for n=1..69.
Thomas S. Ferguson, Game Theory (lecture notes + exercise questions for a course on Combinatorial Game Theory).
P. M. Grundy, Mathematics and games, Eureka (The Archimedeans' Journal), No. 2, 1939, pp. 68. [Annotated scanned copy. My former colleague and coauthor Florence Jessie MacWilliams (nee Collinson), who was a student at Cambridge University in 1939, gave me this journal.  N. J. A. Sloane, Nov 17 2018]


CROSSREFS

Cf. A112471, A112472, A112473.
Sequence in context: A240672 A352288 A243016 * A219202 A341980 A218031
Adjacent sequences: A284972 A284973 A284974 * A284976 A284977 A284978


KEYWORD

nonn


AUTHOR

Thomas J Wolf, Apr 06 2017


STATUS

approved



