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# User:Donghwi Park

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South Korean computational science researcher.

## future contributions

- a(n) is the number of n-th order n X n magic array composed of the numbers from 1 to n^2 in which the sum of the each 2 X 2 subsquares is same for all subsquares, counted up to rotations and reflections
- 1, 3, 47, 2544, 6480

- a(n) is the number of n-th order magic triangles composed of the numbers from 1 to n^2 in which the sum of the each 2 X 2 subtriangles is same for all subtriangles, counted up to rotations and reflections
- 1,4,18,4792,67488,10906128