Number of one-sided n-step prudent walks, avoiding single west step only, i.e., two or more consecutive west steps are permitted.

A190512

Number of one-sided n-step prudent walks, avoiding single west step only, i.e., two or more consecutive west steps are permitted.

Terms

    a(0) =1a(1) =2a(2) =5a(3) =11a(4) =24a(5) =53a(6) =117a(7) =258a(8) =569a(9) =1255a(10) =2768a(11) =6105a(12) =13465a(13) =29698a(14) =65501a(15) =144467a(16) =318632a(17) =702765a(18) =1549997a(19) =3418626a(20) =7540017a(21) =16630031a(22) =36678688a(23) =80897393a(24) =178424817a(25) =393528322a(26) =867954037a(27) =1914332891a(28) =4222194104a(29) =9312342245

External references