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), (0, 0, 1), (1, 0, 1), (1, 1, -1)}.
A150361
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), (0, 0, 1), (1, 0, 1), (1, 1, -1)}.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =23a(4) =92a(5) =355a(6) =1494a(7) =6228a(8) =27021a(9) =117580a(10) =521753a(11) =2329590a(12) =10517533a(13) =47772144a(14) =218571163a(15) =1005172410a(16) =4646983339a(17) =21574204650a(18) =100567356037a(19) =470418531422
External references
- oeis: A150361