Number of simplicial 3-clusters with n cells.

Terms

a(0) =1a(1) =1a(2) =1a(3) =4a(4) =10a(5) =40a(6) =171a(7) =831a(8) =4147a(9) =21822a(10) =117062a(11) =642600a(12) =3582322a(13) =20256885a(14) =115888201a(15) =669911568a(16) =3907720521a(17) =22979343010a(18) =136107859377a(19) =811430160282