Number of walks of length n on hexagonal grid that start and end at the origin. Intermediate returns to the origin are not permitted.
A094060
Number of walks of length n on hexagonal grid that start and end at the origin. Intermediate returns to the origin are not permitted.
Terms
- a(0) =1a(1) =0a(2) =6a(3) =12a(4) =54a(5) =216a(6) =1032a(7) =4896a(8) =24606a(9) =125040a(10) =651348a(11) =3432168a(12) =18331992a(13) =98814816a(14) =537343632a(15) =2942475552a(16) =16214888286a(17) =89835783264a(18) =500116783740
External references
- oeis: A094060