Number of fixed points in range [A014137(n-1)..A014138(n-1)] of permutation A082339/A082340.

A089430

Number of fixed points in range [A014137(n-1)..A014138(n-1)] of permutation A082339/A082340.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =3a(4) =6a(5) =12a(6) =30a(7) =79a(8) =232a(9) =716a(10) =2318a(11) =7714a(12) =26270a(13) =90944a(14) =319146a(15) =1132185a(16) =4053618a(17) =14626828a(18) =53136324a(19) =194174324a(20) =713267792

External references