Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutation A071667/A071668.
A089876
Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutation A071667/A071668.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =14a(6) =22a(7) =62a(8) =127a(9) =320a(10) =756a(11) =1888a(12) =4440a(13) =10996a(14) =26784a(15) =67004a(16) =166449a(17) =417848a(18) =1041262a(19) =2596506a(20) =6427116
External references
- oeis: A089876