Number of 3-tuples (p_1, p_2, p_3) of Dyck paths of semilength n, such that each p_i is never below p_{i-1}.
A006149
Number of 3-tuples (p_1, p_2, p_3) of Dyck paths of semilength n, such that each p_i is never below p_{i-1}.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =30a(4) =330a(5) =4719a(6) =81796a(7) =1643356a(8) =37119160a(9) =922268360a(10) =24801924512a(11) =713055329720
External references
- oeis: A006149