Number of permutations of floor(i*8/3), i=0..n-1, with all sums of two and three adjacent terms respectively unique.
A147930
Number of permutations of floor(i*8/3), i=0..n-1, with all sums of two and three adjacent terms respectively unique.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =24a(4) =96a(5) =376a(6) =2214a(7) =14504a(8) =76592a(9) =578748a(10) =4897972a(11) =35873520a(12) =341266768a(13) =3588847880a(14) =32029981504a(15) =372805397466
External references
- oeis: A147930