Convolution of A000108 (Catalan numbers) with A020922.
A045530
Convolution of A000108 (Catalan numbers) with A020922.
Terms
- a(0) =1a(1) =23a(2) =310a(3) =3195a(4) =27866a(5) =216566a(6) =1546028a(7) =10338515a(8) =65635570a(9) =399429602a(10) =2346750900a(11) =13384232030a(12) =74417751940a(13) =404759481420
External references
- oeis: A045530