Number of lattice paths from (0,0) to (n,n) using steps (1,0), (2,0), (0,2), (1,1).

A192368

Number of lattice paths from (0,0) to (n,n) using steps (1,0), (2,0), (0,2), (1,1).

Terms

    a(0) =1a(1) =1a(2) =6a(3) =19a(4) =94a(5) =396a(6) =1870a(7) =8541a(8) =40284a(9) =189274a(10) =899260a(11) =4281168a(12) =20487156a(13) =98299384a(14) =473118174a(15) =2282322211a(16) =11034087438a(17) =53443135944a(18) =259283934816

External references