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, 1), (-1, 0, 1), (-1, 1, -1), (0, 1, -1), (1, 0, 0)}.
A148144
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, 1), (-1, 0, 1), (-1, 1, -1), (0, 1, -1), (1, 0, 0)}.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =4a(4) =11a(5) =29a(6) =87a(7) =279a(8) =903a(9) =2990a(10) =10343a(11) =36438a(12) =129027a(13) =468060a(14) =1727245a(15) =6402949a(16) =24000526a(17) =91225611a(18) =348672208a(19) =1339913947a(20) =5198901440a(21) =20295939931a(22) =79512175548a(23) =313402415099
External references
- oeis: A148144