https://mathworld.wolfram.com/DoublyMagicSquare.html
Doubly Magic Square -- from Wolfram MathWorld
doubly magicwolfram mathworldsquare
https://cuh.ndl.gov.in/items/74bc7920-8cdd-4350-b079-1e7d85457815
Fusion of Stable Odd-A isotope targets with Doubly Magic 16O Projectile
Fusion excitation functions of stable odd-A targets 147,149Sm with 16O projectile are theoretically analyzed within view of the symmetric-asymmetric Gaussian...
doubly magicfusionstableoddisotope