Number of permutations of {1,2,...,n} having no cycles of the form (i, i+1, i+2, ..., i+j-1) (j >= 1).

A184185

Number of permutations of {1,2,...,n} having no cycles of the form (i, i+1, i+2, ..., i+j-1) (j >= 1).

Terms

    a(0) =1a(1) =0a(2) =0a(3) =1a(4) =6a(5) =34a(6) =216a(7) =1566a(8) =12840a(9) =117696a(10) =1193760a(11) =13280520a(12) =160841520a(13) =2107021680a(14) =29689833600a(15) =447821503920

External references