Number of simple permutations of degree n.

Terms

a(0) =1a(1) =2a(2) =0a(3) =2a(4) =6a(5) =46a(6) =338a(7) =2926a(8) =28146a(9) =298526a(10) =3454434a(11) =43286526a(12) =583835650a(13) =8433987582a(14) =129941213186