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, 0, 1), (0, 1, 0), (1, -1, -1), (1, 0, 1)}.
A150010
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, 0, 1), (0, 1, 0), (1, -1, -1), (1, 0, 1)}.
Terms
- a(0) =1a(1) =2a(2) =5a(3) =17a(4) =60a(5) =226a(6) =894a(7) =3568a(8) =14593a(9) =60774a(10) =255405a(11) =1088287a(12) =4680842a(13) =20270594a(14) =88477666a(15) =388406999a(16) =1713712621a(17) =7599271318a(18) =33835186549a(19) =151220870639a(20) =678235333756
External references
- oeis: A150010