Number of permutations of floor(i*9/7), i=0..n-1, with all sums of 7 adjacent terms unique.
A152646
Number of permutations of floor(i*9/7), 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) =339840a(9) =3087648a(10) =30271392a(11) =324759072a(12) =3731733312a(13) =46734640160a(14) =618773953544
External references
- oeis: A152646