@article{oai:yamagata.repo.nii.ac.jp:00003997, author = {内田, 伏一}, issue = {3}, journal = {山形大学紀要. 自然科学 = BULLETIN OF YAMAGATA UNIVERSITY. Natural Science}, month = {Feb}, note = {論文(Article), In this paper, we consider magic squares which contain arithmetic progressions. Mainly, we consider the magic squares similar to Schaefer's 7- squares. We show how to construct magic squares of order 4k+3 which are of strict Schaefer's type. In general, it is unkown how to construct magic squares of order 4k+1 which are of the type. However, we succeeded in constructing magic squares of orders 9 and 13 which are of the type. At the end of this paper, we show an irregular pandiagonal magic 7-square of new class.}, pages = {1--24}, title = {等差数列を含む魔法陣}, volume = {18}, year = {2016} }