Number of two-sided n-step prudent walks ending on the top side or the right side of their boxes, avoiding two consecutive west steps and south steps.
A190795
Number of two-sided n-step prudent walks ending on the top side or the right side of their boxes, avoiding two consecutive west steps and south steps.
Terms
- a(0) =1a(1) =4a(2) =8a(3) =22a(4) =52a(5) =130a(6) =316a(7) =774a(8) =1884a(9) =4588a(10) =11152a(11) =27088a(12) =65730a(13) =159388a(14) =386248a(15) =935496a(16) =2264662a(17) =5479952
External references
- oeis: A190795