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A075441 a(n) is the number of solutions to the n-term Znám problem. 1
0, 0, 0, 2, 5, 18, 96 (list; graph; refs; listen; history; text; internal format)
OFFSET
2,4
COMMENTS
Three results are missing for a(7) in Eric Weisstein's World of Mathematics: [2, 3, 7, 43, 3263, 4051, 2558951] [2, 3, 11, 25, 29, 1097, 2753] [2, 3, 13, 25, 29, 67, 2981]. - Zhao Hui Du, Jan 24 2010
LINKS
Zhao Hui Du, all results for a(8). [Broken link]
Eric Weisstein's World of Mathematics, Znám's Problem.
CROSSREFS
Cf. A075461.
Sequence in context: A058119 A335547 A367012 * A187008 A333837 A075634
KEYWORD
nonn,more,hard
AUTHOR
Eric W. Weisstein, Sep 16 2002
EXTENSIONS
a(7)-a(8) corrected by Zhao Hui Du, Jan 24 2010
STATUS
approved

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Last modified March 19 01:22 EDT 2024. Contains 370952 sequences. (Running on oeis4.)