Number of meanders (walks starting at the origin and ending at any altitude >= 0 that may touch but never go below the x-axis) with n steps from {-4,-3,-2,-1,1,2,3,4}.
A278416
Number of meanders (walks starting at the origin and ending at any altitude >= 0 that may touch but never go below the x-axis) with n steps from {-4,-3,-2,-1,1,2,3,4}.
Terms
- a(0) =1a(1) =4a(2) =26a(3) =174a(4) =1231a(5) =8899a(6) =65492a(7) =487646a(8) =3664123a(9) =27723979a(10) =210946444a(11) =1612394958a(12) =12371547879a(13) =95230159650a(14) =735060394986
External references
- oeis: A278416