Number of combinatorial types of n-dimensional polytopes with n+3 vertices.

Terms

a(0) =0a(1) =1a(2) =7a(3) =31a(4) =116a(5) =379a(6) =1133a(7) =3210a(8) =8803a(9) =23701a(10) =63239a(11) =168287a(12) =447905a(13) =1194814a(14) =3196180a(15) =8576505a(16) =23081668a(17) =62292381a(18) =168536249a(19) =457035453a(20) =1241954405a(21) =3381289332a(22) =9221603416a(23) =25189382006a(24) =68906572413a(25) =188750887991