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, 1, -1), (0, 0, 1), (1, -1, 1), (1, 0, -1)}.
A148029
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, 1, -1), (0, 0, 1), (1, -1, 1), (1, 0, -1)}.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =3a(4) =8a(5) =17a(6) =50a(7) =133a(8) =444a(9) =1285a(10) =4464a(11) =13843a(12) =49914a(13) =163593a(14) =610856a(15) =2088251a(16) =7990733a(17) =28245697a(18) =110166136a(19) =400127699a(20) =1586561639a(21) =5894252839a(22) =23698567732a(23) =89752409685a(24) =365114337371
External references
- oeis: A148029