Number of permutations of floor(i*7/3), i=0..n-1, with all sums of 2 through 5 adjacent terms respectively unique.
A147946
Number of permutations of floor(i*7/3), i=0..n-1, with all sums of 2 through 5 adjacent terms respectively unique.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =24a(4) =74a(5) =368a(6) =2214a(7) =10892a(8) =69096a(9) =527234a(10) =3431668a(11) =27480534a(12) =255515792a(13) =1977816278a(14) =19064332502a(15) =208268352068
External references
- oeis: A147946