Number of permutations of floor(i*5/3), i=0..n-1, with all sums of two adjacent terms unique.
A147918
Number of permutations of floor(i*5/3), i=0..n-1, with all sums of two adjacent terms unique.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =24a(4) =96a(5) =376a(6) =2434a(7) =16728a(8) =99960a(9) =838244a(10) =7723320a(11) =62801352a(12) =674514660a(13) =7865976872a(14) =80727212972
External references
- oeis: A147918