Number of permutations of 1..n with the sequence of sums of 5 adjacent elements having exactly 1 maximum.
A179724
Number of permutations of 1..n with the sequence of sums of 5 adjacent elements having exactly 1 maximum.
Terms
- a(0) =0a(1) =120a(2) =720a(3) =3780a(4) =20160a(5) =113400a(6) =680400a(7) =4989600a(8) =36590400a(9) =273873600a(10) =2085283200a(11) =15807792000
External references
- oeis: A179724