Number of walks on cubic lattice (starting from origin and not going below xy plane).

A005573

Number of walks on cubic lattice (starting from origin and not going below xy plane).

Terms

    a(0) =1a(1) =5a(2) =26a(3) =139a(4) =758a(5) =4194a(6) =23460a(7) =132339a(8) =751526a(9) =4290838a(10) =24607628a(11) =141648830a(12) =817952188a(13) =4736107172a(14) =27487711752a(15) =159864676803a(16) =931448227590

External references