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, 0, -1), (1, 1, 0), (1, 1, 1)}.
A150718
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, 0, -1), (1, 1, 0), (1, 1, 1)}.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =28a(4) =116a(5) =465a(6) =2002a(7) =8437a(8) =37237a(9) =161422a(10) =722872a(11) =3193287a(12) =14438915a(13) =64628012a(14) =294304218a(15) =1330034420a(16) =6090094043a(17) =27725305017a(18) =127515229293a(19) =583875027223
External references
- oeis: A150718