Number of symmetrically unique Dyck paths of semilength n and height seven.

A291891

Number of symmetrically unique Dyck paths of semilength n and height seven.

Terms

    a(0) =1a(1) =7a(2) =55a(3) =319a(4) =1705a(5) =8238a(6) =37674a(7) =164229a(8) =692627a(9) =2843282a(10) =11433826a(11) =45212792a(12) =176385132a(13) =680452948a(14) =2600725892a(15) =9862321095a(16) =37150333241a(17) =139139984973a(18) =518538211261

External references