2178306

Appears in sequences

• a(n) = Fibonacci(n) - 3. Number of total preorders.at n=28A006327
• T(2n+4,n), array T as in A055794.at n=25A055797
• a(n) = Fibonacci(4n)-3, or Fibonacci(2n-2)*Lucas(2n+2).at n=7A081074
• s(k)-s(j), where (k,j) is the least pair for which n divides s(k)-s(j), and s(j)=Fibonacci(2j).at n=38A205454
• a(n) = L(n)*L(n+1) mod F(n+2) where F=A000045 is the Fibonacci numbers and L = A000032 is the Lucas numbers.at n=30A348591