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), (0, 1, -1), (1, 0, -1), (1, 1, -1), (1, 1, 0)}.
A148444
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), (0, 1, -1), (1, 0, -1), (1, 1, -1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =6a(4) =16a(5) =47a(6) =157a(7) =517a(8) =1754a(9) =6284a(10) =22342a(11) =82117a(12) =305289a(13) =1145162a(14) =4369073a(15) =16760959a(16) =64992835a(17) =253932749a(18) =998432537a(19) =3953538052a(20) =15737751848a(21) =62980503415a(22) =253282002983
External references
- oeis: A148444