Number of self-avoiding walks on hexagonal lattice.

Terms

a(0) =24a(1) =84a(2) =264a(3) =1128a(4) =4728a(5) =20304a(6) =86496a(7) =369732a(8) =1573608a(9) =6703068a(10) =28474704a(11) =120922272a(12) =512524704a(13) =2171836752a(14) =9190071984a(15) =38866395264a(16) =164191075824a(17) =693230730864