Number of permutations of [n] having a shortest ascending run of length 9.
A228676
Number of permutations of [n] having a shortest ascending run of length 9.
Terms
- a(0) =1a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =0a(8) =0a(9) =48619a(10) =184754a(11) =335918a(12) =587858a(13) =994838a(14) =1634378a(15) =2615006a(16) =4085948a(17) =6249098a(18) =227873431499
External references
- oeis: A228676