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), (-1, 1, 1), (0, 0, 1), (1, 0, -1)}.
A148096
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), (-1, 1, 1), (0, 0, 1), (1, 0, -1)}.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =4a(4) =10a(5) =25a(6) =76a(7) =231a(8) =743a(9) =2389a(10) =7896a(11) =26880a(12) =93731a(13) =332056a(14) =1186315a(15) =4276398a(16) =15613592a(17) =57674835a(18) =215106287a(19) =807023678a(20) =3045302991a(21) =11566813790a(22) =44234290091a(23) =170156563119a(24) =657452881298
External references
- oeis: A148096