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, 0, 1), (1, 0, 0), (1, 1, 0)}.
A151065
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, 0, 1), (1, 0, 0), (1, 1, 0)}.
Terms
- a(0) =1a(1) =3a(2) =10a(3) =39a(4) =156a(5) =651a(6) =2803a(7) =12218a(8) =54331a(9) =244094a(10) =1106978a(11) =5068058a(12) =23334902a(13) =108150502a(14) =503753548a(15) =2356387859a(16) =11069504275a(17) =52169455719a(18) =246667514552
External references
- oeis: A151065