A180781 Number of distinct solutions of sum{i=1..10}(x(2i-1)*x(2i)) = 0 (mod n), with x() only in 1..n-1.

0, 1, 18, 756, 18478, 327338, 4292145, 43576141, 354466005, 2394458182, 13770292261, 69111228938, 307750080438, 1236998118274, 4537247867399, 15375840213938, 48489022864504, 143625325278096, 401488209736317

Offset: 1

Author

R. H. Hardin Sep 20 2010

Keywords

• nonn

Comments

Column 10 of A180782

Links

• R. H. Hardin, Table of n, a(n) for n=1..183