Number of permutations of floor(i*8/3), i=0..n-1, with all sums of 2 through 4 adjacent terms respectively unique.
A147939
Number of permutations of floor(i*8/3), i=0..n-1, with all sums of 2 through 4 adjacent terms respectively unique.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =24a(4) =96a(5) =376a(6) =2214a(7) =13736a(8) =74156a(9) =544746a(10) =4407076a(11) =31351588a(12) =285115742a(13) =2837535876a(14) =24004174902a(15) =263778523564
External references
- oeis: A147939