Number of permutations of [n] with distinct lengths of increasing runs.
A317166
Number of permutations of [n] with distinct lengths of increasing runs.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =5a(4) =7a(5) =27a(6) =241a(7) =505a(8) =1975a(9) =10241a(10) =188743a(11) =460545a(12) =2323679a(13) =10836141a(14) =85023209a(15) =2734858573a(16) =8010483015a(17) =45714797671a(18) =243112435345
External references
- oeis: A317166