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

Terms

a(0) =0a(1) =0a(2) =1a(3) =0a(4) =2a(5) =2a(6) =0a(7) =4a(8) =7a(9) =2a(10) =0a(11) =6a(12) =18a(13) =12a(14) =3a(15) =0a(16) =9a(17) =42a(18) =50a(19) =24a(20) =2a(21) =0a(22) =12a(23) =84a(24) =166a(25) =136a(26) =31a(27) =4a(28) =0a(29) =16