Number of permutations of floor(i*7/4), i=0..n-1, with all sums of 2 through 5 adjacent terms respectively unique.
A147912
Number of permutations of floor(i*7/4), i=0..n-1, with all sums of 2 through 5 adjacent terms respectively unique.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =24a(4) =96a(5) =456a(6) =2134a(7) =11650a(8) =74546a(9) =530962a(10) =3285816a(11) =22665948a(12) =187716490a(13) =1693665742a(14) =13845532508a(15) =121701474366
External references
- oeis: A147912