Number of permutations of [n] having a shortest ascending run of length 8.
A228675
Number of permutations of [n] having a shortest ascending run of length 8.
Terms
- a(0) =1a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =0a(8) =12869a(9) =48618a(10) =87514a(11) =151162a(12) =251938a(13) =406978a(14) =639538a(15) =980626a(16) =9465511769a(17) =78873015651a(18) =432930149084
External references
- oeis: A228675