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, 1, -1), (0, 0, 1), (1, -1, -1), (1, 1, 1)}.
A150359
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, 1, -1), (0, 0, 1), (1, -1, -1), (1, 1, 1)}.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =23a(4) =91a(5) =356a(6) =1515a(7) =6432a(8) =28169a(9) =123986a(10) =554931a(11) =2504077a(12) =11409531a(13) =52282072a(14) =241035827a(15) =1116703121a(16) =5199424819a(17) =24306222822a(18) =114031714083a(19) =536621030695
External references
- oeis: A150359