266175

Appears in sequences

• a(n) = n*(4n^2 - 1)^2.at n=7A069073
• a(n) = (2*n-1)*(2*n+1)^2.at n=31A102094
• Number of distinct solutions of sum{i=1..3}(x(2i-1)*x(2i)) = 1 (mod n), with x() only in 1..n-1.at n=26A180785
• Take the terms 0..n of the infinite Fibonacci word A003849, regard them as a number in Fibonacci base.at n=26A363070