Number of permutations of [n] such that for each cycle c the smallest integer interval containing all elements of c has at most seven elements.
A276841
Number of permutations of [n] such that for each cycle c the smallest integer interval containing all elements of c has at most seven elements.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =6a(4) =24a(5) =120a(6) =720a(7) =5040a(8) =20160a(9) =75600a(10) =287280a(11) =1133550a(12) =4686660a(13) =20368569a(14) =93109737a(15) =406088940a(16) =1719126780a(17) =7184340564a(18) =29966843736a(19) =125593803792a(20) =530881463680
External references
- oeis: A276841