Number of lattice paths from (0,0) to (n,n) using steps (1,0), (3,0), (0,1), (0,3).
A192446
Number of lattice paths from (0,0) to (n,n) using steps (1,0), (3,0), (0,1), (0,3).
Terms
- a(0) =1a(1) =2a(2) =6a(3) =30a(4) =154a(5) =768a(6) =3906a(7) =20232a(8) =105750a(9) =556328a(10) =2943432a(11) =15646932a(12) =83500126a(13) =447057380a(14) =2400249624a(15) =12918250836a(16) =69674241654a(17) =376489511460
External references
- oeis: A192446