Number of dissections of a polygon: binomial(7n,n)/(6n+1).

A002296

Number of dissections of a polygon: binomial(7n,n)/(6n+1).

Terms

    a(0) =1a(1) =1a(2) =7a(3) =70a(4) =819a(5) =10472a(6) =141778a(7) =1997688a(8) =28989675a(9) =430321633a(10) =6503352856a(11) =99726673130

External references