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), (0, 1, 1), (1, -1, 1), (1, 1, -1)}.
A149058
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), (0, 1, 1), (1, -1, 1), (1, 1, -1)}.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =10a(4) =41a(5) =159a(6) =688a(7) =2925a(8) =13046a(9) =58099a(10) =264647a(11) =1209007a(12) =5593147a(13) =25967563a(14) =121512931a(15) =570471691a(16) =2692588141a(17) =12744832317a(18) =60558719347a(19) =288445413396
External references
- oeis: A149058