Number of free polyaboloes without any two triangles sharing a hypotenuse.

Terms

a(0) =1a(1) =2a(2) =3a(3) =6a(4) =7a(5) =13a(6) =18a(7) =31a(8) =45a(9) =76a(10) =115a(11) =190a(12) =289a(13) =472a(14) =736a(15) =1189a(16) =1859a(17) =2988a(18) =4716a(19) =7543a(20) =11886a(21) =18955a(22) =30024a(23) =47762a(24) =75476a(25) =119870a(26) =189930a(27) =301219a(28) =476147a(29) =754384