Number of permutations of floor(i*7/6), i=0..n-1, with all sums of 2 through 5 adjacent terms respectively unique.
A147913
Number of permutations of floor(i*7/6), i=0..n-1, with all sums of 2 through 5 adjacent terms respectively unique.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =16a(4) =54a(5) =232a(6) =1194a(7) =5348a(8) =28874a(9) =153508a(10) =823908a(11) =4528784a(12) =31785252a(13) =218092306a(14) =1562069462a(15) =11268454920
External references
- oeis: A147913