Single Digit: Bordered magic squares based on single digit.

Two Digits: Bordered magic squares based on magic rectangles of order 2xk (k=4, 8, 12, …).

Three Digits: Bordered magic squares based on magic squares of order 3:

Four Digits: Bordered magic squares based on magic squares of order 4.

Five Digits: Bordered magic squares based on magic squares of order 5.

Six Digits: Bordered magic squares based on magic squares of order 6, etc.

The work can also be accessed at the following link:

Inder J. Taneja, Two digits Bordered Magic Squares of Orders 26 and 30, Zenodo, April, 30, 2023, pp. 1-44, https://doi.org/10.5281/zenodo.7880937 . Below are few examples along with with pdf files of orders 26 and 30 for download.