Irregular triangle read by rows: Numbers of unbranched k-5-catafusenes.

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =3a(6) =1a(7) =4a(8) =8a(9) =12a(10) =5a(11) =2a(12) =10a(13) =29a(14) =48a(15) =36a(16) =15a(17) =3a(18) =25a(19) =95a(20) =193a(21) =185a(22) =114a(23) =32a(24) =6a(25) =70a(26) =329a(27) =757a(28) =933a(29) =706