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, 1, -1), (0, 1, 0), (1, -1, 1), (1, 1, 0)}.
A150374
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, 1, -1), (0, 1, 0), (1, -1, 1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =23a(4) =95a(5) =363a(6) =1595a(7) =6576a(8) =29823a(9) =128653a(10) =594848a(11) =2643155a(12) =12382129a(13) =56166303a(14) =265615561a(15) =1223207904a(16) =5826063531a(17) =27140199774a(18) =129988229863a(19) =611007235665
External references
- oeis: A150374