Number of n-step walks on hexagonal lattice (no points repeated, no adjacent points unless consecutive in path).

A174313

Number of n-step walks on hexagonal lattice (no points repeated, no adjacent points unless consecutive in path).

Terms

    a(0) =1a(1) =6a(2) =18a(3) =54a(4) =162a(5) =474a(6) =1398a(7) =4074a(8) =11898a(9) =34554a(10) =100302a(11) =290322a(12) =839382a(13) =2422626a(14) =6984342a(15) =20110806a(16) =57851358a(17) =166258242a(18) =477419658a(19) =1369878582a(20) =3927963138a(21) =11255743434a(22) =32235116502a(23) =92267490414a(24) =263968559874a(25) =754837708494

External references