Number of permutations of floor(i*7/2), i=0..n-1, with all sums of 2 through 5 adjacent terms respectively unique.
A147911
Number of permutations of floor(i*7/2), 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) =74a(5) =368a(6) =1924a(7) =10496a(8) =65446a(9) =426596a(10) =3063568a(11) =23111856a(12) =192313168a(13) =1659439736a(14) =15571466308a(15) =150999440500
External references
- oeis: A147911