Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, 1), (1, -1, 0), (1, 0, -1), (1, 1, 1)}.
A149702
Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, 1), (1, -1, 0), (1, 0, -1), (1, 1, 1)}.
Terms
- a(0) =1a(1) =1a(2) =5a(3) =17a(4) =69a(5) =277a(6) =1199a(7) =4997a(8) =22323a(9) =96197a(10) =433435a(11) =1914391a(12) =8686795a(13) =38913039a(14) =177843391a(15) =804285853a(16) =3695136351a(17) =16839549393a(18) =77665053029a(19) =356072649163
External references
- oeis: A149702