Number of permutations of floor(i*8/7), i=0..n-1, with all sums of 5 adjacent terms unique.

A152364

Number of permutations of floor(i*8/7), i=0..n-1, with all sums of 5 adjacent terms unique.

Terms

    a(0) =1a(1) =2a(2) =6a(3) =24a(4) =120a(5) =720a(6) =4416a(7) =31416a(8) =244848a(9) =2051440a(10) =19937544a(11) =199909750a(12) =2216470260a(13) =25839182598a(14) =333498017906

External references