Number of cycles in range [A014137(2n)..A014138(2n)] of permutation A057505/A057506.

A081167

Number of cycles in range [A014137(2n)..A014138(2n)] of permutation A057505/A057506.

Terms

    a(0) =1a(1) =2a(2) =10a(3) =46a(4) =236a(5) =1288a(6) =6984a(7) =38528a(8) =216648a(9) =1240818

External references