Number of dyslexic planted planar trees with n nodes.

Terms

a(0) =1a(1) =1a(2) =2a(3) =4a(4) =10a(5) =25a(6) =69a(7) =193a(8) =565a(9) =1680a(10) =5113a(11) =15757a(12) =49223a(13) =155228a(14) =493937a(15) =1583002a(16) =5106386a(17) =16563542a(18) =53995678a(19) =176797966a(20) =581196445a(21) =1917446630a(22) =6346554919a(23) =21068877925a(24) =70133571797a(25) =234043258802a(26) =782831380626