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), (-1, 0, 1), (-1, 1, 0), (1, 0, 0)}.
A149074
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), (-1, 0, 1), (-1, 1, 0), (1, 0, 0)}.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =7a(4) =28a(5) =58a(6) =242a(7) =551a(8) =2400a(9) =5818a(10) =26002a(11) =65756a(12) =298554a(13) =778282a(14) =3578788a(15) =9550923a(16) =44367836a(17) =120636622a(18) =564755938a(19) =1558850020a(20) =7343234714a(21) =20522712330a(22) =97185278732a(23) =274480115654
External references
- oeis: A149074