Number of Dyck n-paths starting U^mD^m (an m-pyramid), followed by a pyramid-free Dyck path.
A035929
Number of Dyck n-paths starting U^mD^m (an m-pyramid), followed by a pyramid-free Dyck path.
Terms
- a(0) =0a(1) =1a(2) =1a(3) =1a(4) =2a(5) =6a(6) =19a(7) =61a(8) =200a(9) =670a(10) =2286a(11) =7918a(12) =27770a(13) =98424a(14) =351983a(15) =1268541a(16) =4602752a(17) =16799894a(18) =61642078a(19) =227239086a(20) =841230292a(21) =3126039364a(22) =11656497518a(23) =43601626146a(24) =163561902392a(25) =615183356156
External references
- oeis: A035929