Number of permutations of floor(i*7/6), i=0..n-1, with all sums of two adjacent terms unique.
A147888
Number of permutations of floor(i*7/6), 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) =232a(6) =1426a(7) =8308a(8) =57150a(9) =397720a(10) =3031266a(11) =24524008a(12) =246278170a(13) =2524773072a(14) =27494109560a(15) =308909489620
External references
- oeis: A147888