Number of permutations of floor(i*6/5), i=0..n-1, with all sums of 2 through 5 adjacent terms respectively unique.
A147945
Number of permutations of floor(i*6/5), 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) =260a(6) =1236a(7) =6360a(8) =31636a(9) =159064a(10) =1028418a(11) =6241800a(12) =40763772a(13) =268393912a(14) =1814067010a(15) =14763664426
External references
- oeis: A147945