Number of permutations of floor(i*5/2), i=0..n-1, with all sums of 4 adjacent terms unique.
A152335
Number of permutations of floor(i*5/2), i=0..n-1, with all sums of 4 adjacent terms unique.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =24a(4) =120a(5) =640a(6) =4164a(7) =28224a(8) =237168a(9) =2133992a(10) =21136148a(11) =226558932a(12) =2656690332a(13) =33144866692a(14) =444798029884
External references
- oeis: A152335