Number of simplicial 4-clusters with n cells.

Terms

a(0) =1a(1) =1a(2) =1a(3) =3a(4) =8a(5) =40a(6) =211a(7) =1406a(8) =9754a(9) =71591a(10) =537699a(11) =4131943a(12) =32271490a(13) =255690412a(14) =2050376883a(15) =16616721067a(16) =135920429975