Number of unlabeled reduced unit interval graphs on n nodes.

Terms

a(0) =0a(1) =0a(2) =1a(3) =1a(4) =3a(5) =4a(6) =11a(7) =21a(8) =55a(9) =124a(10) =327a(11) =815a(12) =2177a(13) =5712a(14) =15465a(15) =41727a(16) =114291a(17) =313504a(18) =866963a(19) =2404251a(20) =6701321a(21) =18733340a(22) =52557441a(23) =147849031a(24) =417080105a(25) =1179355476a(26) =3342487033a(27) =9492629497a(28) =27011665839a(29) =77000574224