Number of walks on simple cubic lattice (starting on the xy plane, never going below it and finishing a height 1 above it).

A052177

Number of walks on simple cubic lattice (starting on the xy plane, never going below it and finishing a height 1 above it).

Terms

    a(0) =0a(1) =1a(2) =8a(3) =50a(4) =288a(5) =1605a(6) =8824a(7) =48286a(8) =264128a(9) =1447338a(10) =7953040a(11) =43842788a(12) =242507456a(13) =1345868589a(14) =7493458392a(15) =41850173670a(16) =234408444288

External references