A180792 Number of distinct solutions of sum{i=1..10}(x(2i-1)*x(2i)) = 1 (mod n), with x() only in 1..n-1

0, 0, 26, 744, 18475, 326446, 4292149, 43506488, 354466019, 2391684440, 13770292256, 69044240450, 307750080388, 1235903232638, 4537248102720, 15362780912768, 48489022864600, 143504551536641, 401488209735955

Offset

1,3

Comments

Column 10 of A180793

Links

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

Crossrefs

Sequence in context: A182612 A143900 A282790 * A091742 A160140 A139670

Adjacent sequences: A180789 A180790 A180791 * A180793 A180794 A180795

Keyword

nonn

Author

R. H. Hardin Sep 20 2010

Status

approved