... Nanoscale Res Lett (2007) 2:202–206123 algorithm for computing distance matrix of these nanotubes.Throughout this paper, our notation is standard. They areappearing as in the same way as in ... basevertex is equal to the sum of entries in the first row of Dð1;1ÞmÂn: On the other hand, one can compute the sum of entries in other rows by distance from the position of basevertex. Therefore,sði;jÞk¼sð1;1ÞiÀkþ11 ... A. A. Dobrynin, Comput. Chem. 23, 43 (1999)6. A. A. Dobrynin, R. Entringer, I. Gutman, Acta Appl. Math. 66,211 (2001)7. A. A. Dobrynin, I. Gutman, S. Klavzˇar, P. Zigert, Acta Appl.Math. 72,...