Number of isoscent sequences of length n with maximal number of descents.

Terms

a(0) =1a(1) =1a(2) =2a(3) =1a(4) =6a(5) =2a(6) =28a(7) =10a(8) =1a(9) =98a(10) =22a(11) =2a(12) =570a(13) =130a(14) =17a(15) =1a(16) =1842a(17) =337a(18) =38a(19) =2a(20) =13104a(21) =2437a(22) =318a(23) =26a(24) =1a(25) =45188a(26) =7126a(27) =805a(28) =58a(29) =2