Number of self-avoiding n-step walks on Kagome lattice.

Terms

a(0) =1a(1) =4a(2) =12a(3) =32a(4) =88a(5) =240a(6) =652a(7) =1744a(8) =4616a(9) =12208a(10) =32328a(11) =85408a(12) =224640a(13) =589024a(14) =1542944a(15) =4039256a(16) =10560552a(17) =27567488a(18) =71878068a(19) =187262944a(20) =487526944a(21) =1268269160a(22) =3296832292a(23) =8564411120a(24) =22235825104a(25) =57701041072a(26) =149657337872a(27) =387978891176