Number of permutations of floor(i*8/5), i=0..n-1, with all sums of two adjacent terms unique.
A147889
Number of permutations of floor(i*8/5), i=0..n-1, with all sums of two adjacent terms unique.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =16a(4) =74a(5) =448a(6) =2418a(7) =13656a(8) =106120a(9) =788328a(10) =7615458a(11) =68903424a(12) =654009926a(13) =7602830768a(14) =82353986258
External references
- oeis: A147889