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, 0), (1, 0, 1), (1, 1, 1)}.
A150745
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, 0), (1, 0, 1), (1, 1, 1)}.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =29a(4) =126a(5) =524a(6) =2387a(7) =10508a(8) =48974a(9) =222544a(10) =1052519a(11) =4878196a(12) =23293729a(13) =109442303a(14) =526219286a(15) =2496617326a(16) =12066173820a(17) =57671916912a(18) =279839865438
External references
- oeis: A150745