Number of positive meanders (walks starting at the origin and ending at any altitude > 0 that never touch or go below the x-axis in between) with n steps from {-4,-3,-2,-1,0,1,2,3,4}.
A278393
Number of positive meanders (walks starting at the origin and ending at any altitude > 0 that never touch or go below the x-axis in between) with n steps from {-4,-3,-2,-1,0,1,2,3,4}.
Terms
- a(0) =1a(1) =4a(2) =26a(3) =194a(4) =1521a(5) =12289a(6) =101205a(7) =844711a(8) =7120398a(9) =60477913a(10) =516774114a(11) =4437360897a(12) =38256405777a(13) =330948944639
External references
- oeis: A278393