Number of permutations of [2n+8] in which the longest increasing run has length n+8.
A230348
Number of permutations of [2n+8] in which the longest increasing run has length n+8.
Terms
- a(0) =1a(1) =18a(2) =349a(3) =7672a(4) =192240a(5) =5454144a(6) =173606040a(7) =6143195520a(8) =239656253760
External references
- oeis: A230348