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), (-1, 1, 1), (1, 0, 0), (1, 0, 1)}.
A150320
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), (-1, 1, 1), (1, 0, 0), (1, 0, 1)}.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =21a(4) =93a(5) =334a(6) =1536a(7) =5867a(8) =28047a(9) =112618a(10) =542814a(11) =2233452a(12) =10915934a(13) =45965645a(14) =225308120a(15) =961377360a(16) =4743469916a(17) =20511319674a(18) =101331875971a(19) =441859544548
External references
- oeis: A150320