The number of walks of n steps on the hexagonal lattice that start at the origin and end at the adjacent vertex (1,0).

A337905

The number of walks of n steps on the hexagonal lattice that start at the origin and end at the adjacent vertex (1,0).

Terms

    a(0) =1a(1) =2a(2) =15a(3) =60a(4) =340a(5) =1680a(6) =9135a(7) =48440a(8) =264726a(9) =1446060a(10) =7996296a(11) =44396352a(12) =248133600a(13) =1392623232a(14) =7850732175a(15) =44413669872a(16) =252098234674

External references