Number of permutations of [n] with exactly 2 increasing runs of length at least 2.
A000363
Number of permutations of [n] with exactly 2 increasing runs of length at least 2.
Terms
- a(0) =5a(1) =61a(2) =479a(3) =3111a(4) =18270a(5) =101166a(6) =540242a(7) =2819266a(8) =14494859a(9) =73802835a(10) =373398489a(11) =1881341265a(12) =9453340172a(13) =47417364268a(14) =237571096820
External references
- oeis: A000363