[seqfan] Number of self-avoiding walks on square lattice

Luca Petrone luca.petrone at libero.it
Sun Mar 13 10:37:08 CET 2016

Dear Seq Fans
A006142, A006143 and A006144 have the same description "Number of 
self-avoiding walks on square lattice" (and they are collected in 
sequence A002976, summing A006142 + 2 * A006143 + A006144). Can anybody 
explain to me the meaning of these three sequences ?
Thank you and Regards,
Luca PetroneMilano (I)

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