Total length of self-avoiding walks with n bonds on the square lattice with additional bridges of length 2.

A259816

Total length of self-avoiding walks with n bonds on the square lattice with additional bridges of length 2.

Terms

    a(0) =4a(1) =12a(2) =64a(3) =160a(4) =676a(5) =1732a(6) =6440a(7) =16688a(8) =57620a(9) =150580a(10) =494776a(11) =1301208a(12) =4126100a(13) =10903692a(14) =33663256a(15) =89287024a(16) =269997636a(17) =718153380a(18) =2136075840a(19) =5693969456a(20) =16710504036a(21) =44618212196

External references