Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutation A089859/A089863.

A089407

Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutation A089859/A089863.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =2a(4) =4a(5) =11a(6) =34a(7) =109a(8) =360a(9) =1219a(10) =4206a(11) =14708a(12) =52024a(13) =185758a(14) =668676a(15) =2423821a(16) =8839632a(17) =32411555a(18) =119410390a(19) =441817020a(20) =1641032536a(21) =6116570954a(22) =22870649308a(23) =85764918130a(24) =322476066224

External references