Number of nondeterministic Dyck excursions of length 2*n.
A368234
Number of nondeterministic Dyck excursions of length 2*n.
Terms
- a(0) =1a(1) =4a(2) =28a(3) =224a(4) =1888a(5) =16320a(6) =143040a(7) =1264128a(8) =11230720a(9) =100124672a(10) =894785536a(11) =8010072064a(12) =71794294784a(13) =644079468544
External references
- oeis: A368234