Number of distinct solutions of sum{i=1..8}(x(2i-1)*x(2i)) = 1 (mod n), with x() in 0..n-1.

A180810

Number of distinct solutions of sum{i=1..8}(x(2i-1)*x(2i)) = 1 (mod n), with x() in 0..n-1.

Terms

    a(0) =0a(1) =20a(2) =429a(3) =5920a(4) =63954a(5) =510927a(6) =3362288a(7) =17975676a(8) =83628636a(9) =335900991a(10) =1222011613a(11) =3989760008a(12) =12105111844a(13) =33802351881a(14) =89361617169a(15) =221117356432a(16) =524533042878

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