Number of permutations of floor(i*9/4), i=0..n-1, with all sums of 7 adjacent terms unique.
A152644
Number of permutations of floor(i*9/4), i=0..n-1, with all sums of 7 adjacent terms unique.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =24a(4) =120a(5) =720a(6) =5040a(7) =40320a(8) =343680a(9) =3210336a(10) =32428512a(11) =359501856a(12) =4409024192a(13) =56394389456a(14) =777561149096
External references
- oeis: A152644