Number of n-step three-sided prudent self-avoiding walks ending at the northwest corner of their box.

A191828

Number of n-step three-sided prudent self-avoiding walks ending at the northwest corner of their box.

Terms

    a(0) =1a(1) =2a(2) =4a(3) =10a(4) =24a(5) =59a(6) =143a(7) =351a(8) =860a(9) =2117a(10) =5211a(11) =12856a(12) =31734a(13) =78431a(14) =193951a(15) =479983a(16) =1188388a(17) =2943786a(18) =7294704a(19) =18082477a(20) =44835711a(21) =111197870a(22) =275839085a(23) =684372592a(24) =1698221877a(25) =4214570553a(26) =10460699937a(27) =25966317723a(28) =64460852039

External references