Triangle read by rows: T(n,k) is the number of paths in the first quadrant from (0,0) to (n,k), consisting of steps U=(1,1), D=(1,-1), h=(1,0) and H=(2,0) (0<=k<=n).
A132276
Triangle read by rows: T(n,k) is the number of paths in the first quadrant from (0,0) to (n,k), consisting of steps U=(1,1), D=(1,-1), h=(1,0) and H=(2,0) (0<=k<=n).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =3a(4) =2a(5) =1a(6) =6a(7) =7a(8) =3a(9) =1a(10) =16a(11) =18a(12) =12a(13) =4a(14) =1a(15) =40a(16) =53a(17) =37a(18) =18a(19) =5a(20) =1a(21) =109a(22) =148a(23) =120a(24) =64a(25) =25a(26) =6a(27) =1a(28) =297a(29) =430
External references
- oeis: A132276