Number of paths of length n starting at initial node of the path graph P_11.

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =6a(5) =10a(6) =20a(7) =35a(8) =70a(9) =126a(10) =252a(11) =461a(12) =922a(13) =1702a(14) =3404a(15) =6315a(16) =12630a(17) =23494a(18) =46988a(19) =87533a(20) =175066a(21) =326382a(22) =652764a(23) =1217483a(24) =2434966a(25) =4542526a(26) =9085052a(27) =16950573a(28) =33901146a(29) =63255670