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, 0, 0), (-1, 1, 1), (1, -1, 0), (1, 1, -1), (1, 1, 1)}.
A149802
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, 0, 0), (-1, 1, 1), (1, -1, 0), (1, 1, -1), (1, 1, 1)}.
Terms
- a(0) =1a(1) =1a(2) =5a(3) =19a(4) =89a(5) =375a(6) =1805a(7) =8123a(8) =39635a(9) =184209a(10) =905579a(11) =4292587a(12) =21203517a(13) =101798661a(14) =504390879a(15) =2442933851a(16) =12129953247a(17) =59121919153a(18) =294003483617
External references
- oeis: A149802