Number of certain self-avoiding walks with n steps on square lattice (see reference for precise definition).

A002976

Number of certain self-avoiding walks with n steps on square lattice (see reference for precise definition).

Terms

    a(0) =0a(1) =1a(2) =0a(3) =2a(4) =0a(5) =5a(6) =9a(7) =21a(8) =42a(9) =76a(10) =174a(11) =396a(12) =888a(13) =2023a(14) =4345a(15) =9921a(16) =22566

External references