Number of possible bidding sequences of length n in contract bridge.

A387252

Number of possible bidding sequences of length n in contract bridge.

Terms

    a(0) =36a(1) =665a(2) =9030a(3) =97720a(4) =892437a(5) =7127050a(6) =50970050a(7) =332034857a(8) =1995444633a(9) =11172611175a(10) =58738344597a(11) =291806532703

External references