Number of permutations of floor(i*6/5), i=0..n-1, with all sums of two adjacent terms unique.
A147919
Number of permutations of floor(i*6/5), i=0..n-1, with all sums of two adjacent terms unique.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =16a(4) =54a(5) =300a(6) =1508a(7) =9488a(8) =58680a(9) =406376a(10) =3576988a(11) =30865472a(12) =296769186a(13) =2879354420a(14) =30206726508a(15) =369524784820
External references
- oeis: A147919