Number of permutations of floor(i*5/4), i=0..n-1, with all sums of 5 adjacent terms unique.
A152355
Number of permutations of floor(i*5/4), 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) =4560a(7) =32376a(8) =255360a(9) =2288848a(10) =21294224a(11) =220378816a(12) =2478838056a(13) =29988785070a(14) =383377570858
External references
- oeis: A152355