Number of permutations of floor(i*8/7), i=0..n-1, with all sums of 2 through 5 adjacent terms respectively unique.
A147949
Number of permutations of floor(i*8/7), i=0..n-1, with all sums of 2 through 5 adjacent terms respectively unique.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =16a(4) =54a(5) =232a(6) =936a(7) =5070a(8) =25700a(9) =139976a(10) =795314a(11) =4513652a(12) =26295578a(13) =160997802a(14) =1236858656a(15) =9227571868
External references
- oeis: A147949