Number of permutations of floor(i*7/2), i=0..n-1, with all sums of two and three adjacent terms respectively unique.
A147894
Number of permutations of floor(i*7/2), i=0..n-1, with all sums of two and three adjacent terms respectively unique.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =16a(4) =74a(5) =368a(6) =1924a(7) =10912a(8) =67792a(9) =449216a(10) =3401230a(11) =26973896a(12) =240069290a(13) =2230691024a(14) =22675693280a(15) =239723851692
External references
- oeis: A147894