Number of even cycles in range [A014137(n-1)..A014138(n-1)] of permutation A057505/A057506.
A081150
Number of even cycles in range [A014137(n-1)..A014138(n-1)] of permutation A057505/A057506.
Terms
- a(0) =0a(1) =0a(2) =1a(3) =1a(4) =3a(5) =6a(6) =18a(7) =37a(8) =95a(9) =212a(10) =528a(11) =1226a(12) =2936a(13) =6822a(14) =16212a(15) =38081a(16) =90717a(17) =215414a(18) =516358
External references
- oeis: A081150