Number of free polyjogs with n cells.

Terms

a(0) =1a(1) =1a(2) =4a(3) =17a(4) =88a(5) =503a(6) =3071a(7) =19372a(8) =124575a(9) =813020a(10) =5361539a(11) =35662727a(12) =238864272a(13) =1609398564