f-vectors for simplicial complexes of dimension at most 2 on at most n-1 vertices.

Terms

a(0) =2a(1) =3a(2) =5a(3) =10a(4) =25a(5) =70a(6) =190a(7) =471a(8) =1060a(9) =2189a(10) =4203a(11) =7592a(12) =13027a(13) =21400a(14) =33868a(15) =51901a(16) =77334a(17) =112423a(18) =159905a(19) =223062a(20) =305789a(21) =412666a(22) =549034a(23) =721075a(24) =935896a(25) =1201617a(26) =1527463a(27) =1923860a(28) =2402535a(29) =2976620