Number of 2-colored non-crossing set partitions of [n].
A216947
Number of 2-colored non-crossing set partitions of [n].
Terms
- a(0) =1a(1) =1a(2) =3a(3) =11a(4) =47a(5) =225a(6) =1173a(7) =6529a(8) =38265a(9) =233795a(10) =1478265a(11) =9619065a(12) =64135965a(13) =436693431a(14) =3028075677a(15) =21335364345a(16) =152466207953
External references
- oeis: A216947