a(n) is the sum of the squares of the area under Dyck paths of length 2*n.
A367780
a(n) is the sum of the squares of the area under Dyck paths of length 2*n.
Terms
- a(0) =0a(1) =1a(2) =20a(3) =189a(4) =1356a(5) =8426a(6) =47944a(7) =257085a(8) =1321036a(9) =6574190a(10) =31911320a(11) =151841906a(12) =710828600a(13) =3282862644a(14) =14988894992a(15) =67769474077a(16) =303823057164
External references
- oeis: A367780