A075441 a(n) is the number of solutions to the n-term Znám problem.

0, 0, 0, 2, 5, 18, 96

Offset: 2

Author

Eric W. Weisstein, Sep 16 2002

Keywords

• nonn
• more
• hard

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.

Extensions

a(7)-a(8) corrected by Zhao Hui Du, Jan 24 2010