Number of permutations of floor(i*9/4), i=0..n-1, with all sums of 2 through 4 adjacent terms respectively unique.
A147941
Number of permutations of floor(i*9/4), i=0..n-1, with all sums of 2 through 4 adjacent terms respectively unique.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =16a(4) =96a(5) =376a(6) =1924a(7) =10496a(8) =84546a(9) =522100a(10) =3532332a(11) =28645680a(12) =292372132a(13) =2430262092a(14) =21376627926a(15) =227599952694
External references
- oeis: A147941