On the average hitting times of Cay(ZN, {+1,+2})

The exact formula for the average hitting time (HT, as an abbreviation) of simple random walks on Cay(ZN, {+1, +2}) was given by Y. Doi et al.. Y. Doi et al. give a simple formula for the HT's of simple random walks on Cay(ZN, {+1, +2}) by using an elementary method. In this paper, using an elementary method also used by Y. Doi et al., we give a simple formula for HT's of simple random walks on Cay(ZN, {+1, +2}).(c) 2023 Elsevier B.V. All rights reserved.