Number of sensed loopless planar maps with n edges.

Terms

a(0) =1a(1) =1a(2) =2a(3) =5a(4) =14a(5) =49a(6) =240a(7) =1259a(8) =7570a(9) =47996a(10) =319518a(11) =2199295a(12) =15571610a(13) =112773478a(14) =832809504a(15) =6253673323a(16) =47650870538a(17) =367784975116