Number of loopless rooted planar maps with 5 faces and n vertices and no isthmuses.

Terms

a(0) =1a(1) =38a(2) =469a(3) =3008a(4) =12843a(5) =42602a(6) =119042a(7) =293578a(8) =658021a(9) =1367170a(10) =2670203a(11) =4953136a(12) =8794967a(13) =15040494a(14) =24893192a(15) =40031954a(16) =62755945a(17) =96162286a(18) =144361777a(19) =212738384a(20) =308258755a(21) =439838594a(22) =618773310a(23) =859240970a(24) =1178886221a(25) =1599494506a(26) =2147766583a(27) =2856204064