Number of (1,1)-steps on the lines y=x, y=x+1 and y=x-1 in all Delannoy paths of length n.
A110184
Number of (1,1)-steps on the lines y=x, y=x+1 and y=x-1 in all Delannoy paths of length n.
Terms
- a(0) =0a(1) =1a(2) =8a(3) =55a(4) =354a(5) =2205a(6) =13484a(7) =81523a(8) =489158a(9) =2919481a(10) =17356752a(11) =102884271a(12) =608460330a(13) =3591886293a(14) =21172419444a(15) =124649246955a(16) =733107494286
External references
- oeis: A110184