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, 1), (0, 1, 0), (1, 0, 0), (1, 1, 0)}.
A151086
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, 1), (0, 1, 0), (1, 0, 0), (1, 1, 0)}.
Terms
- a(0) =1a(1) =3a(2) =11a(3) =41a(4) =163a(5) =678a(6) =2908a(7) =12689a(8) =56096a(9) =251383a(10) =1139337a(11) =5208786a(12) =23965775a(13) =110924342a(14) =516254394a(15) =2414349496a(16) =11335791596a(17) =53407506243a(18) =252434493264
External references
- oeis: A151086