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, 0), (0, -1, 1), (0, 1, 1), (1, 1, 0)}.
A150482
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, 0), (0, -1, 1), (0, 1, 1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =25a(4) =100a(5) =399a(6) =1684a(7) =7090a(8) =30698a(9) =133650a(10) =588793a(11) =2611114a(12) =11660162a(13) =52328699a(14) =236097821a(15) =1069202574a(16) =4860527354a(17) =22164421184a(18) =101359319576a(19) =464728029665
External references
- oeis: A150482