Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutation A089851/A089853.

A089847

Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutation A089851/A089853.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =3a(4) =8a(5) =24a(6) =72a(7) =231a(8) =764a(9) =2574a(10) =8840a(11) =30796a(12) =108528a(13) =386308a(14) =1386756a(15) =5014575a(16) =18249120a(17) =66786738a(18) =245642760a(19) =907513530a(20) =3366215688a(21) =12531502620a(22) =46805032560a(23) =175341580596a(24) =658674458208

External references