Number of permutations of floor(i*7/6), i=0..n-1, with all sums of two and three adjacent terms respectively unique.
A147896
Number of permutations of floor(i*7/6), i=0..n-1, with all sums of two and three adjacent terms respectively unique.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =16a(4) =54a(5) =232a(6) =1194a(7) =5850a(8) =32514a(9) =186512a(10) =1126380a(11) =7192530a(12) =59572866a(13) =496249216a(14) =4342242234a(15) =38902467388
External references
- oeis: A147896