Number of ways to collapse an n-rowed triangular formation of dominoes.

A333837

Number of ways to collapse an n-rowed triangular formation of dominoes.

Terms

    a(0) =1a(1) =2a(2) =5a(3) =18a(4) =97a(5) =802a(6) =10565a(7) =228850a(8) =8289217a(9) =506526530a(10) =52501381765

External references